130631651136 has 126 divisors (see below), whose sum is σ = 435563897730. Its totient is φ = 37323320832.

The previous prime is 130631651131. The next prime is 130631651147. The reversal of 130631651136 is 631156136031.

130631651136 is a `hidden beast` number, since 1 + 3 + 0 + 631 + 6 + 5 + 1 + 13 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114027782400 + 16603868736 = 337680^2 + 128856^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is a super-2 number, since 2×130631651136² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 130631651136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130631651131) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2285971 + ... + 2342418.

Almost surely, 2^130631651136 is an apocalyptic number.

130631651136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

130631651136 is an abundant number, since it is smaller than the sum of its proper divisors (304932246594).

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

130631651136 is a wasteful number, since it uses less digits than its factorization.

130631651136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628421 (or 4628401 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

Adding to 130631651136 its reverse (631156136031), we get a palindrome (761787787167).

The spelling of 130631651136 in words is "one hundred thirty billion, six hundred thirty-one million, six hundred fifty-one thousand, one hundred thirty-six".