13220536294 has 16 divisors (see below), whose sum is σ = 22665254688. Its totient is φ = 5665574592.

The previous prime is 13220536261. The next prime is 13220536309. The reversal of 13220536294 is 49263502231.

It is a congruent number.

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, 386704 + ... + 419500.

It is an arithmetic number, because the mean of its divisors is an integer number (1416578418).

Almost surely, 2^13220536294 is an apocalyptic number.

13220536294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13220536294 is a deficient number, since it is larger than the sum of its proper divisors (9444718394).

13220536294 is a wasteful number, since it uses less digits than its factorization.

13220536294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61599.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 13220536294 in words is "thirteen billion, two hundred twenty million, five hundred thirty-six thousand, two hundred ninety-four".