13056815434 has 16 divisors (see below), whose sum is σ = 21095520768. Its totient is φ = 6025153392.

The previous prime is 13056815423. The next prime is 13056815461. The reversal of 13056815434 is 43451865031.

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, 115699 + ... + 198745.

It is an arithmetic number, because the mean of its divisors is an integer number (1318470048).

Almost surely, 2^13056815434 is an apocalyptic number.

13056815434 is a deficient number, since it is larger than the sum of its proper divisors (8038705334).

13056815434 is a wasteful number, since it uses less digits than its factorization.

13056815434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89109.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 13056815434 in words is "thirteen billion, fifty-six million, eight hundred fifteen thousand, four hundred thirty-four".