155100515660 has 12 divisors (see below), whose sum is σ = 325711082928. Its totient is φ = 62040206256.

The previous prime is 155100515659. The next prime is 155100515711. The reversal of 155100515660 is 66515001551.

It is a self number, because there is not a number n which added to its sum of digits gives 155100515660.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3877512872 + ... + 3877512911.

It is an arithmetic number, because the mean of its divisors is an integer number (27142590244).

Almost surely, 2^155100515660 is an apocalyptic number.

155100515660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155100515660 is an abundant number, since it is smaller than the sum of its proper divisors (170610567268).

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

155100515660 is a wasteful number, since it uses less digits than its factorization.

155100515660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755025792 (or 7755025790 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 155100515660 in words is "one hundred fifty-five billion, one hundred million, five hundred fifteen thousand, six hundred sixty".