13161570405 has 16 divisors (see below), whose sum is σ = 21346987200. Its totient is φ = 6923346048.

The previous prime is 13161570361. The next prime is 13161570413. The reversal of 13161570405 is 50407516131.

It is not a de Polignac number, because 13161570405 - 2¹² = 13161566309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6008755 + ... + 6010944.

It is an arithmetic number, because the mean of its divisors is an integer number (1334186700).

Almost surely, 2^13161570405 is an apocalyptic number.

13161570405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13161570405 is a deficient number, since it is larger than the sum of its proper divisors (8185416795).

13161570405 is a wasteful number, since it uses less digits than its factorization.

13161570405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019780.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 13161570405 in words is "thirteen billion, one hundred sixty-one million, five hundred seventy thousand, four hundred five".