155355320552 has 16 divisors (see below), whose sum is σ = 292017644100. Its totient is φ = 77483948800.

The previous prime is 155355320537. The next prime is 155355320563. The reversal of 155355320552 is 255023553551.

It can be written as a sum of positive squares in 2 ways, for example, as 155335303876 + 20016676 = 394126^2 + 4474^2 .

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, 24210527 + ... + 24216942.

Almost surely, 2^155355320552 is an apocalyptic number.

It is an amenable number.

155355320552 is a deficient number, since it is larger than the sum of its proper divisors (136662323548).

155355320552 is a wasteful number, since it uses less digits than its factorization.

155355320552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48427876 (or 48427872 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 41.

The spelling of 155355320552 in words is "one hundred fifty-five billion, three hundred fifty-five million, three hundred twenty thousand, five hundred fifty-two".