155915760 has 480 divisors, whose sum is σ = 664957440. Its totient is φ = 29399040.

The previous prime is 155915759. The next prime is 155915761. The reversal of 155915760 is 67519551.

It is an interprime number because it is at equal distance from previous prime (155915759) and next prime (155915761).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155915761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2642611 + ... + 2642669.

It is an arithmetic number, because the mean of its divisors is an integer number (1385328).

Almost surely, 2^155915760 is an apocalyptic number.

155915760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155915760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332478720).

155915760 is an abundant number, since it is smaller than the sum of its proper divisors (509041680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155915760 is a wasteful number, since it uses less digits than its factorization.

155915760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 39.

The square root of 155915760 is about 12486.6232424943. The cubic root of 155915760 is about 538.2243459349.

It can be divided in two parts, 15 and 5915760, that multiplied together give a square (88736400 = 9420²).

The spelling of 155915760 in words is "one hundred fifty-five million, nine hundred fifteen thousand, seven hundred sixty".