131650403720 has 32 divisors (see below), whose sum is σ = 323141901120. Its totient is φ = 47872873920.

The previous prime is 131650403707. The next prime is 131650403741. The reversal of 131650403720 is 27304056131.

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, 149602292 + ... + 149603171.

It is an arithmetic number, because the mean of its divisors is an integer number (10098184410).

Almost surely, 2^131650403720 is an apocalyptic number.

131650403720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131650403720 is an abundant number, since it is smaller than the sum of its proper divisors (191491497400).

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

131650403720 is a wasteful number, since it uses less digits than its factorization.

131650403720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299205485 (or 299205481 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 131650403720 its reverse (27304056131), we get a palindrome (158954459851).

The spelling of 131650403720 in words is "one hundred thirty-one billion, six hundred fifty million, four hundred three thousand, seven hundred twenty".