656545246001 has 4 divisors (see below), whose sum is σ = 661557041904. Its totient is φ = 651533450100.

The previous prime is 656545245991. The next prime is 656545246037. The reversal of 656545246001 is 100642545656.

656545246001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 656545246001 - 2³⁴ = 639365376817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656545246061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505897755 + ... + 2505898016.

It is an arithmetic number, because the mean of its divisors is an integer number (165389260476).

Almost surely, 2^656545246001 is an apocalyptic number.

It is an amenable number.

656545246001 is a deficient number, since it is larger than the sum of its proper divisors (5011795903).

656545246001 is a wasteful number, since it uses less digits than its factorization.

656545246001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011795902.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 656545246001 in words is "six hundred fifty-six billion, five hundred forty-five million, two hundred forty-six thousand, one".