130165640 has 32 divisors (see below), whose sum is σ = 319498560. Its totient is φ = 47332800.

The previous prime is 130165639. The next prime is 130165691. The reversal of 130165640 is 46561031.

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, 147476 + ... + 148355.

It is an arithmetic number, because the mean of its divisors is an integer number (9984330).

Almost surely, 2^130165640 is an apocalyptic number.

130165640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130165640 is an abundant number, since it is smaller than the sum of its proper divisors (189332920).

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

130165640 is a wasteful number, since it uses less digits than its factorization.

130165640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295853 (or 295849 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 130165640 is about 11409.0157331822. The cubic root of 130165640 is about 506.7947640870.

The spelling of 130165640 in words is "one hundred thirty million, one hundred sixty-five thousand, six hundred forty".