656006446260654 has 32 divisors (see below), whose sum is σ = 1324277355332736. Its totient is φ = 216624746495520.

The previous prime is 656006446260647. The next prime is 656006446260751. The reversal of 656006446260654 is 456062644600656.

It is a super-4 number, since 4×656006446260654⁴ (a number of 60 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544495429 + ... + 545698895.

It is an arithmetic number, because the mean of its divisors is an integer number (41383667354148).

Almost surely, 2^{656006446260654} is an apocalyptic number.

656006446260654 is an abundant number, since it is smaller than the sum of its proper divisors (668270909072082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656006446260654 is a wasteful number, since it uses less digits than its factorization.

656006446260654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052640.

The product of its (nonzero) digits is 149299200, while the sum is 60.

The spelling of 656006446260654 in words is "six hundred fifty-six trillion, six billion, four hundred forty-six million, two hundred sixty thousand, six hundred fifty-four".