201564106154 has 32 divisors (see below), whose sum is σ = 319074732480. Its totient is φ = 95233387392.

The previous prime is 201564106129. The next prime is 201564106199. The reversal of 201564106154 is 451601465102.

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, 26095337 + ... + 26103059.

It is an arithmetic number, because the mean of its divisors is an integer number (9971085390).

Almost surely, 2^201564106154 is an apocalyptic number.

201564106154 is a deficient number, since it is larger than the sum of its proper divisors (117510626326).

201564106154 is a wasteful number, since it uses less digits than its factorization.

201564106154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 201564106154 in words is "two hundred one billion, five hundred sixty-four million, one hundred six thousand, one hundred fifty-four".