1013640671564 has 12 divisors (see below), whose sum is σ = 1773884805000. Its totient is φ = 506816441568.

The previous prime is 1013640671521. The next prime is 1013640671579. The reversal of 1013640671564 is 4651760463101.

It is a happy number.

It is a super-2 number, since 2×1013640671564² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342434 + ... + 1464425.

It is an arithmetic number, because the mean of its divisors is an integer number (147823733750).

Almost surely, 2^{1013640671564} is an apocalyptic number.

It is an amenable number.

1013640671564 is a deficient number, since it is larger than the sum of its proper divisors (760244133436).

1013640671564 is a wasteful number, since it uses less digits than its factorization.

1013640671564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947112 (or 1947110 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 1013640671564 in words is "one trillion, thirteen billion, six hundred forty million, six hundred seventy-one thousand, five hundred sixty-four".