10643315464 has 32 divisors (see below), whose sum is σ = 20160855000. Its totient is φ = 5267192832.

The previous prime is 10643315437. The next prime is 10643315471. The reversal of 10643315464 is 46451334601.

It can be written as a sum of positive squares in 4 ways, for example, as 7591636900 + 3051678564 = 87130^2 + 55242^2 .

It is a super-2 number, since 2×10643315464² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877312 + ... + 889360.

Almost surely, 2^10643315464 is an apocalyptic number.

It is an amenable number.

10643315464 is a deficient number, since it is larger than the sum of its proper divisors (9517539536).

10643315464 is a wasteful number, since it uses less digits than its factorization.

10643315464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13177 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 10643315464 in words is "ten billion, six hundred forty-three million, three hundred fifteen thousand, four hundred sixty-four".