131564626620 has 96 divisors (see below), whose sum is σ = 429598848000. Its totient is φ = 30071909952.

The previous prime is 131564626601. The next prime is 131564626621. The reversal of 131564626620 is 26626465131.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131564626621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3175840 + ... + 3216999.

It is an arithmetic number, because the mean of its divisors is an integer number (4474988000).

Almost surely, 2^131564626620 is an apocalyptic number.

131564626620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131564626620 is an abundant number, since it is smaller than the sum of its proper divisors (298034221380).

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

131564626620 is a wasteful number, since it uses less digits than its factorization.

131564626620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392872 (or 6392856 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 131564626620 in words is "one hundred thirty-one billion, five hundred sixty-four million, six hundred twenty-six thousand, six hundred twenty".