630905656017 has 192 divisors, whose sum is σ = 1124074291200. Its totient is φ = 311962637952.

The previous prime is 630905656001. The next prime is 630905656049. The reversal of 630905656017 is 710656509036.

It is not a de Polignac number, because 630905656017 - 2⁴ = 630905656001 is a prime.

It is a super-2 number, since 2×630905656017² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630905656097) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1664658534 + ... + 1664658912.

It is an arithmetic number, because the mean of its divisors is an integer number (5854553600).

Almost surely, 2^630905656017 is an apocalyptic number.

It is an amenable number.

630905656017 is a deficient number, since it is larger than the sum of its proper divisors (493168635183).

630905656017 is a wasteful number, since it uses less digits than its factorization.

630905656017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 630905656017 in words is "six hundred thirty billion, nine hundred five million, six hundred fifty-six thousand, seventeen".