155887788552 has 16 divisors (see below), whose sum is σ = 389719471440. Its totient is φ = 51962596176.

The previous prime is 155887788547. The next prime is 155887788601. The reversal of 155887788552 is 255887788551.

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, 3247662238 + ... + 3247662285.

It is an arithmetic number, because the mean of its divisors is an integer number (24357466965).

Almost surely, 2^155887788552 is an apocalyptic number.

155887788552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155887788552 is an abundant number, since it is smaller than the sum of its proper divisors (233831682888).

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

155887788552 is a wasteful number, since it uses less digits than its factorization.

155887788552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495324532 (or 6495324528 counting only the distinct ones).

The product of its digits is 250880000, while the sum is 69.

Subtracting 155887788552 from its reverse (255887788551), we obtain a palindrome (99999999999).

The spelling of 155887788552 in words is "one hundred fifty-five billion, eight hundred eighty-seven million, seven hundred eighty-eight thousand, five hundred fifty-two".