656137463 has 2 divisors, whose sum is σ = 656137464. Its totient is φ = 656137462.

The previous prime is 656137451. The next prime is 656137477. The reversal of 656137463 is 364731656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656137463 - 2¹² = 656133367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 656137463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656130463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328068731 + 328068732.

It is an arithmetic number, because the mean of its divisors is an integer number (328068732).

Almost surely, 2^656137463 is an apocalyptic number.

656137463 is a deficient number, since it is larger than the sum of its proper divisors (1).

656137463 is an equidigital number, since it uses as much as digits as its factorization.

656137463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 656137463 is about 25615.1803233942. The cubic root of 656137463 is about 868.9569845266.

The spelling of 656137463 in words is "six hundred fifty-six million, one hundred thirty-seven thousand, four hundred sixty-three".