155266320 has 160 divisors (see below), whose sum is σ = 531108864. Its totient is φ = 37209600.

The previous prime is 155266313. The next prime is 155266327. The reversal of 155266320 is 23662551.

It is an interprime number because it is at equal distance from previous prime (155266313) and next prime (155266327).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (155266327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271635 + ... + 272205.

Almost surely, 2^155266320 is an apocalyptic number.

155266320 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 155266320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265554432).

155266320 is an abundant number, since it is smaller than the sum of its proper divisors (375842544).

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

155266320 is a wasteful number, since it uses less digits than its factorization.

155266320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 155266320 is about 12460.5906762079. The cubic root of 155266320 is about 537.4760126306.

The spelling of 155266320 in words is "one hundred fifty-five million, two hundred sixty-six thousand, three hundred twenty".