131960503998 has 64 divisors (see below), whose sum is σ = 302058469440. Its totient is φ = 42676761600.

The previous prime is 131960503967. The next prime is 131960504017. The reversal of 131960503998 is 899305069131.

131960503998 is a `hidden beast` number, since 13 + 19 + 605 + 0 + 3 + 9 + 9 + 8 = 666.

It is a super-3 number, since 3×131960503998³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236086 + ... + 565382.

It is an arithmetic number, because the mean of its divisors is an integer number (4719663585).

Almost surely, 2^131960503998 is an apocalyptic number.

131960503998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131960503998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151029234720).

131960503998 is an abundant number, since it is smaller than the sum of its proper divisors (170097965442).

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

131960503998 is a wasteful number, since it uses less digits than its factorization.

131960503998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329530 (or 329524 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 131960503998 in words is "one hundred thirty-one billion, nine hundred sixty million, five hundred three thousand, nine hundred ninety-eight".