656625446200401 has 16 divisors (see below), whose sum is σ = 883683770112000. Its totient is φ = 433660083147648.

The previous prime is 656625446200387. The next prime is 656625446200417. The reversal of 656625446200401 is 104002644526656.

It is not a de Polignac number, because 656625446200401 - 2¹⁴ = 656625446184017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656625446000401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169743121 + ... + 173568366.

It is an arithmetic number, because the mean of its divisors is an integer number (55230235632000).

Almost surely, 2^{656625446200401} is an apocalyptic number.

It is an amenable number.

656625446200401 is a deficient number, since it is larger than the sum of its proper divisors (227058323911599).

656625446200401 is a wasteful number, since it uses less digits than its factorization.

656625446200401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343317448.

The product of its (nonzero) digits is 8294400, while the sum is 51.

The spelling of 656625446200401 in words is "six hundred fifty-six trillion, six hundred twenty-five billion, four hundred forty-six million, two hundred thousand, four hundred one".