155142015516 has 36 divisors (see below), whose sum is σ = 392537769624. Its totient is φ = 51664788000.

The previous prime is 155142015443. The next prime is 155142015547. The reversal of 155142015516 is 615510241551.

155142015516 is a `hidden beast` number, since 1 + 551 + 42 + 0 + 1 + 55 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2012355 + ... + 2088026.

It is an arithmetic number, because the mean of its divisors is an integer number (10903826934).

Almost surely, 2^155142015516 is an apocalyptic number.

It is an amenable number.

155142015516 is an abundant number, since it is smaller than the sum of its proper divisors (237395754108).

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

155142015516 is a wasteful number, since it uses less digits than its factorization.

155142015516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101442 (or 4101437 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 155142015516 in words is "one hundred fifty-five billion, one hundred forty-two million, fifteen thousand, five hundred sixteen".