130660776 has 160 divisors (see below), whose sum is σ = 401841000. Its totient is φ = 39481344.

The previous prime is 130660763. The next prime is 130660837. The reversal of 130660776 is 677066031.

It can be written as a sum of positive squares in 4 ways, for example, as 130644900 + 15876 = 11430^2 + 126^2 .

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 130660776.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 319260 + ... + 319668.

Almost surely, 2^130660776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130660776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200920500).

130660776 is an abundant number, since it is smaller than the sum of its proper divisors (271180224).

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

130660776 is a wasteful number, since it uses less digits than its factorization.

130660776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 130660776 is about 11430.6944670917. The cubic root of 130660776 is about 507.4365484828.

The spelling of 130660776 in words is "one hundred thirty million, six hundred sixty thousand, seven hundred seventy-six".