201056151550 has 48 divisors (see below), whose sum is σ = 376950494160. Its totient is φ = 79781103360.

The previous prime is 201056151539. The next prime is 201056151581. The reversal of 201056151550 is 55151650102.

It is a congruent number.

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, 10930261 + ... + 10948639.

It is an arithmetic number, because the mean of its divisors is an integer number (7853135295).

Almost surely, 2^201056151550 is an apocalyptic number.

201056151550 is a deficient number, since it is larger than the sum of its proper divisors (175894342610).

201056151550 is a wasteful number, since it uses less digits than its factorization.

201056151550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20125 (or 20120 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 201056151550 in words is "two hundred one billion, fifty-six million, one hundred fifty-one thousand, five hundred fifty".