155386155568 has 120 divisors (see below), whose sum is σ = 358067113488. Its totient is φ = 65109477888.

The previous prime is 155386155557. The next prime is 155386155593. The reversal of 155386155568 is 865551683551.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12168355 + ... + 12181117.

Almost surely, 2^155386155568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155386155568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179033556744).

155386155568 is an abundant number, since it is smaller than the sum of its proper divisors (202680957920).

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

155386155568 is a wasteful number, since it uses less digits than its factorization.

155386155568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131 (or 13118 counting only the distinct ones).

The product of its digits is 21600000, while the sum is 58.

The spelling of 155386155568 in words is "one hundred fifty-five billion, three hundred eighty-six million, one hundred fifty-five thousand, five hundred sixty-eight".