655406416460061 has 64 divisors (see below), whose sum is σ = 1154100506419200. Its totient is φ = 359783239503168.

The previous prime is 655406416460041. The next prime is 655406416460069. The reversal of 655406416460061 is 160064614604556.

It is a happy number.

655406416460061 is a `hidden beast` number, since 6 + 5 + 54 + 0 + 64 + 16 + 460 + 0 + 61 = 666.

It is not a de Polignac number, because 655406416460061 - 2⁶ = 655406416459997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655406416460069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 592632435 + ... + 593737328.

It is an arithmetic number, because the mean of its divisors is an integer number (18032820412800).

Almost surely, 2^{655406416460061} is an apocalyptic number.

It is an amenable number.

655406416460061 is a deficient number, since it is larger than the sum of its proper divisors (498694089959139).

655406416460061 is a wasteful number, since it uses less digits than its factorization.

655406416460061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186369895 (or 1186369889 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 655406416460061 in words is "six hundred fifty-five trillion, four hundred six billion, four hundred sixteen million, four hundred sixty thousand, sixty-one".