155151660 has 48 divisors (see below), whose sum is σ = 435891456. Its totient is φ = 41234112.

The previous prime is 155151649. The next prime is 155151691. The reversal of 155151660 is 66151551.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14209 + ... + 22631.

It is an arithmetic number, because the mean of its divisors is an integer number (9081072).

Almost surely, 2^155151660 is an apocalyptic number.

155151660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155151660 is an abundant number, since it is smaller than the sum of its proper divisors (280739796).

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

155151660 is a wasteful number, since it uses less digits than its factorization.

155151660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 155151660 is about 12455.9889209970. The cubic root of 155151660 is about 537.3436761913.

The spelling of 155151660 in words is "one hundred fifty-five million, one hundred fifty-one thousand, six hundred sixty".