10646631563 has 8 divisors (see below), whose sum is σ = 10939590480. Its totient is φ = 10353947040.

The previous prime is 10646631553. The next prime is 10646631623. The reversal of 10646631563 is 36513664601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10646631563 - 2²⁸ = 10378196107 is a prime.

It is a super-2 number, since 2×10646631563² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10646631563.

It is not an unprimeable number, because it can be changed into a prime (10646631533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11333 + ... + 146361.

It is an arithmetic number, because the mean of its divisors is an integer number (1367448810).

Almost surely, 2^10646631563 is an apocalyptic number.

10646631563 is a deficient number, since it is larger than the sum of its proper divisors (292958917).

10646631563 is a wasteful number, since it uses less digits than its factorization.

10646631563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137197.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 10646631563 in words is "ten billion, six hundred forty-six million, six hundred thirty-one thousand, five hundred sixty-three".