131564161290 has 32 divisors (see below), whose sum is σ = 315856759680. Its totient is φ = 35072357184.

The previous prime is 131564161277. The next prime is 131564161297. The reversal of 131564161290 is 92161465131.

It is a super-2 number, since 2×131564161290² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131564161297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619789 + ... + 804528.

It is an arithmetic number, because the mean of its divisors is an integer number (9870523740).

Almost surely, 2^131564161290 is an apocalyptic number.

131564161290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131564161290 is an abundant number, since it is smaller than the sum of its proper divisors (184292598390).

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

131564161290 is a wasteful number, since it uses less digits than its factorization.

131564161290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427406.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 131564161290 in words is "one hundred thirty-one billion, five hundred sixty-four million, one hundred sixty-one thousand, two hundred ninety".