155348355656 has 32 divisors (see below), whose sum is σ = 332136194040. Its totient is φ = 67481637888.

The previous prime is 155348355653. The next prime is 155348355683. The reversal of 155348355656 is 656553843551.

It can be written as a sum of positive squares in 4 ways, for example, as 154551196900 + 797158756 = 393130^2 + 28234^2 .

It is a super-2 number, since 2×155348355656² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155348355653) 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, 43931591 + ... + 43935126.

Almost surely, 2^155348355656 is an apocalyptic number.

It is an amenable number.

155348355656 is an abundant number, since it is smaller than the sum of its proper divisors (176787838384).

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

155348355656 is a wasteful number, since it uses less digits than its factorization.

155348355656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87866753 (or 87866749 counting only the distinct ones).

The product of its digits is 32400000, while the sum is 56.

The spelling of 155348355656 in words is "one hundred fifty-five billion, three hundred forty-eight million, three hundred fifty-five thousand, six hundred fifty-six".