155720516655652 has 48 divisors (see below), whose sum is σ = 301200148529280. Its totient is φ = 70002819355392.

The previous prime is 155720516655601. The next prime is 155720516655679. The reversal of 155720516655652 is 256556615027551.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250790488 + ... + 251410639.

It is an arithmetic number, because the mean of its divisors is an integer number (6275003094360).

Almost surely, 2^{155720516655652} is an apocalyptic number.

It is an amenable number.

155720516655652 is a deficient number, since it is larger than the sum of its proper divisors (145479631873628).

155720516655652 is a wasteful number, since it uses less digits than its factorization.

155720516655652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502201300 (or 502201298 counting only the distinct ones).

The product of its (nonzero) digits is 94500000, while the sum is 61.

The spelling of 155720516655652 in words is "one hundred fifty-five trillion, seven hundred twenty billion, five hundred sixteen million, six hundred fifty-five thousand, six hundred fifty-two".