155116656516 has 24 divisors (see below), whose sum is σ = 371720997760. Its totient is φ = 50308104672.

The previous prime is 155116656449. The next prime is 155116656517. The reversal of 155116656516 is 615656611551.

It is a super-2 number, since 2×155116656516² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155116656517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174680476 + ... + 174681363.

Almost surely, 2^155116656516 is an apocalyptic number.

It is an amenable number.

155116656516 is an abundant number, since it is smaller than the sum of its proper divisors (216604341244).

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

155116656516 is a wasteful number, since it uses less digits than its factorization.

155116656516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349361883 (or 349361881 counting only the distinct ones).

The product of its digits is 810000, while the sum is 48.

The spelling of 155116656516 in words is "one hundred fifty-five billion, one hundred sixteen million, six hundred fifty-six thousand, five hundred sixteen".