155516605104 has 80 divisors (see below), whose sum is σ = 467807415552. Its totient is φ = 43594946304.

The previous prime is 155516605099. The next prime is 155516605109. The reversal of 155516605104 is 401506615551.

It is an interprime number because it is at equal distance from previous prime (155516605099) and next prime (155516605109).

It is not an unprimeable number, because it can be changed into a prime (155516605109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4348674 + ... + 4384289.

Almost surely, 2^155516605104 is an apocalyptic number.

155516605104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155516605104 is an abundant number, since it is smaller than the sum of its proper divisors (312290810448).

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

155516605104 is a wasteful number, since it uses less digits than its factorization.

155516605104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733034 (or 8733028 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 155516605104 in words is "one hundred fifty-five billion, five hundred sixteen million, six hundred five thousand, one hundred four".