201655374123 has 32 divisors (see below), whose sum is σ = 313491571200. Its totient is φ = 112916434176.

The previous prime is 201655374121. The next prime is 201655374133. The reversal of 201655374123 is 321473556102.

It is not a de Polignac number, because 201655374123 - 2¹ = 201655374121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201655374121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127813 + ... + 647801.

It is an arithmetic number, because the mean of its divisors is an integer number (9796611600).

Almost surely, 2^201655374123 is an apocalyptic number.

201655374123 is a deficient number, since it is larger than the sum of its proper divisors (111836197077).

201655374123 is a wasteful number, since it uses less digits than its factorization.

201655374123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520371.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 201655374123 in words is "two hundred one billion, six hundred fifty-five million, three hundred seventy-four thousand, one hundred twenty-three".