655632700651 has 2 divisors, whose sum is σ = 655632700652. Its totient is φ = 655632700650.

The previous prime is 655632700649. The next prime is 655632700661. The reversal of 655632700651 is 156007236556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655632700651 - 2¹ = 655632700649 is a prime.

Together with 655632700649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (655632700631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327816350325 + 327816350326.

It is an arithmetic number, because the mean of its divisors is an integer number (327816350326).

Almost surely, 2^655632700651 is an apocalyptic number.

655632700651 is a deficient number, since it is larger than the sum of its proper divisors (1).

655632700651 is an equidigital number, since it uses as much as digits as its factorization.

655632700651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 655632700651 in words is "six hundred fifty-five billion, six hundred thirty-two million, seven hundred thousand, six hundred fifty-one".