656406046211 has 4 divisors (see below), whose sum is σ = 658194618912. Its totient is φ = 654617473512.

The previous prime is 656406046201. The next prime is 656406046229. The reversal of 656406046211 is 112640604656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 656406046211 - 2²² = 656401851907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656406046201) 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, 894285800 + ... + 894286533.

It is an arithmetic number, because the mean of its divisors is an integer number (164548654728).

Almost surely, 2^656406046211 is an apocalyptic number.

656406046211 is a deficient number, since it is larger than the sum of its proper divisors (1788572701).

656406046211 is a wasteful number, since it uses less digits than its factorization.

656406046211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788572700.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 656406046211 in words is "six hundred fifty-six billion, four hundred six million, forty-six thousand, two hundred eleven".