13457720116 has 12 divisors (see below), whose sum is σ = 24125425380. Its totient is φ = 6564741440.

The previous prime is 13457720069. The next prime is 13457720117. The reversal of 13457720116 is 61102775431.

It can be written as a sum of positive squares in 2 ways, for example, as 604963216 + 12852756900 = 24596^2 + 113370^2 .

It is a super-2 number, since 2×13457720116² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457720117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41029471 + ... + 41029798.

It is an arithmetic number, because the mean of its divisors is an integer number (2010452115).

Almost surely, 2^13457720116 is an apocalyptic number.

It is an amenable number.

13457720116 is a deficient number, since it is larger than the sum of its proper divisors (10667705264).

13457720116 is a wasteful number, since it uses less digits than its factorization.

13457720116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82059314 (or 82059312 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 13457720116 in words is "thirteen billion, four hundred fifty-seven million, seven hundred twenty thousand, one hundred sixteen".