656452943622 has 64 divisors (see below), whose sum is σ = 1667426342400. Its totient is φ = 187530504480.

The previous prime is 656452943603. The next prime is 656452943633. The reversal of 656452943622 is 226349254656.

656452943622 is a `hidden beast` number, since 6 + 5 + 6 + 4 + 5 + 2 + 9 + 4 + 3 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2529472 + ... + 2776892.

It is an arithmetic number, because the mean of its divisors is an integer number (26053536600).

Almost surely, 2^656452943622 is an apocalyptic number.

656452943622 is an abundant number, since it is smaller than the sum of its proper divisors (1010973398778).

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

656452943622 is a wasteful number, since it uses less digits than its factorization.

656452943622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254458 (or 254452 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 656452943622 in words is "six hundred fifty-six billion, four hundred fifty-two million, nine hundred forty-three thousand, six hundred twenty-two".