10013665665402 has 80 divisors (see below), whose sum is σ = 25644572110080. Its totient is φ = 2860923398112.

The previous prime is 10013665665371. The next prime is 10013665665407. The reversal of 10013665665402 is 20456656631001.

10013665665402 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 36 + 6 + 566 + 54 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (10013665665407) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27804799 + ... + 28162637.

It is an arithmetic number, because the mean of its divisors is an integer number (320557151376).

Almost surely, 2^{10013665665402} is an apocalyptic number.

10013665665402 is an abundant number, since it is smaller than the sum of its proper divisors (15630906444678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10013665665402 is a wasteful number, since it uses less digits than its factorization.

10013665665402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382537 (or 382528 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 10013665665402 in words is "ten trillion, thirteen billion, six hundred sixty-five million, six hundred sixty-five thousand, four hundred two".