155116516610555 has 8 divisors (see below), whose sum is σ = 186233216743392. Its totient is φ = 124030948747968.

The previous prime is 155116516610519. The next prime is 155116516610557. The reversal of 155116516610555 is 555016615611551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155116516610555 - 2⁴⁶ = 84747772432891 is a prime.

It is a super-2 number, since 2×155116516610555² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155116516610497 and 155116516610506.

It is not an unprimeable number, because it can be changed into a prime (155116516610557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7783056599 + ... + 7783076528.

It is an arithmetic number, because the mean of its divisors is an integer number (23279152092924).

Almost surely, 2^{155116516610555} is an apocalyptic number.

155116516610555 is a deficient number, since it is larger than the sum of its proper divisors (31116700132837).

155116516610555 is a wasteful number, since it uses less digits than its factorization.

155116516610555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15566135125.

The product of its (nonzero) digits is 3375000, while the sum is 53.

The spelling of 155116516610555 in words is "one hundred fifty-five trillion, one hundred sixteen billion, five hundred sixteen million, six hundred ten thousand, five hundred fifty-five".