155111327051532 has 12 divisors (see below), whose sum is σ = 361926429786936. Its totient is φ = 51703775683840.

The previous prime is 155111327051519. The next prime is 155111327051777. The reversal of 155111327051532 is 235150723111551.

It is a tau number, because it is divible by the number of its divisors (12).

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, 6462971960469 + ... + 6462971960492.

It is an arithmetic number, because the mean of its divisors is an integer number (30160535815578).

Almost surely, 2^{155111327051532} is an apocalyptic number.

155111327051532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155111327051532 is an abundant number, since it is smaller than the sum of its proper divisors (206815102735404).

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

155111327051532 is a wasteful number, since it uses less digits than its factorization.

155111327051532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12925943920968 (or 12925943920966 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 42.

The spelling of 155111327051532 in words is "one hundred fifty-five trillion, one hundred eleven billion, three hundred twenty-seven million, fifty-one thousand, five hundred thirty-two".