155387660 has 12 divisors (see below), whose sum is σ = 326314128. Its totient is φ = 62155056.

The previous prime is 155387653. The next prime is 155387669. The reversal of 155387660 is 66783551.

It is not an unprimeable number, because it can be changed into a prime (155387669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884672 + ... + 3884711.

It is an arithmetic number, because the mean of its divisors is an integer number (27192844).

Almost surely, 2^155387660 is an apocalyptic number.

155387660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155387660 is an abundant number, since it is smaller than the sum of its proper divisors (170926468).

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

155387660 is a wasteful number, since it uses less digits than its factorization.

155387660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7769392 (or 7769390 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 155387660 is about 12465.4586758771. The cubic root of 155387660 is about 537.6159879490.

The spelling of 155387660 in words is "one hundred fifty-five million, three hundred eighty-seven thousand, six hundred sixty".