130405664 has 24 divisors (see below), whose sum is σ = 270249840. Its totient is φ = 61770816.

The previous prime is 130405643. The next prime is 130405687. The reversal of 130405664 is 466504031.

130405664 = T₃₂₇ + T₃₂₈ + ... + T₉₃₄.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106634 + ... + 107849.

It is an arithmetic number, because the mean of its divisors is an integer number (11260410).

Almost surely, 2^130405664 is an apocalyptic number.

It is an amenable number.

130405664 is an abundant number, since it is smaller than the sum of its proper divisors (139844176).

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

130405664 is a wasteful number, since it uses less digits than its factorization.

130405664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214512 (or 214504 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 130405664 is about 11419.5299377864. The cubic root of 130405664 is about 507.1060807898.

Adding to 130405664 its reverse (466504031), we get a palindrome (596909695).

The spelling of 130405664 in words is "one hundred thirty million, four hundred five thousand, six hundred sixty-four".