155671560 has 192 divisors, whose sum is σ = 581256000. Its totient is φ = 35735040.

The previous prime is 155671519. The next prime is 155671561. The reversal of 155671560 is 65176551.

155671560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (155671561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74206 + ... + 76274.

It is an arithmetic number, because the mean of its divisors is an integer number (3027375).

Almost surely, 2^155671560 is an apocalyptic number.

155671560 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 155671560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290628000).

155671560 is an abundant number, since it is smaller than the sum of its proper divisors (425584440).

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

155671560 is a wasteful number, since it uses less digits than its factorization.

155671560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 155671560 is about 12476.8409463293. The cubic root of 155671560 is about 537.9432046658.

The spelling of 155671560 in words is "one hundred fifty-five million, six hundred seventy-one thousand, five hundred sixty".