155111017537542 has 16 divisors (see below), whose sum is σ = 338424038263872. Its totient is φ = 47003338647720.

The previous prime is 155111017537537. The next prime is 155111017537631. The reversal of 155111017537542 is 245735710111551.

It is a junction number, because it is equal to n+sod(n) for n = 155111017537491 and 155111017537500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175083466128 + ... + 1175083466259.

It is an arithmetic number, because the mean of its divisors is an integer number (21151502391492).

Almost surely, 2^{155111017537542} is an apocalyptic number.

155111017537542 is an abundant number, since it is smaller than the sum of its proper divisors (183313020726330).

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

155111017537542 is a wasteful number, since it uses less digits than its factorization.

155111017537542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350166932403.

The product of its (nonzero) digits is 735000, while the sum is 48.

The spelling of 155111017537542 in words is "one hundred fifty-five trillion, one hundred eleven billion, seventeen million, five hundred thirty-seven thousand, five hundred forty-two".