129700947664 has 10 divisors (see below), whose sum is σ = 251295586130. Its totient is φ = 64850473824.

The previous prime is 129700947637. The next prime is 129700947671. The reversal of 129700947664 is 466749007921.

It can be written as a sum of positive squares in only one way, i.e., 119356430400 + 10344517264 = 345480^2 + 101708^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4053154599 + ... + 4053154630.

It is an arithmetic number, because the mean of its divisors is an integer number (25129558613).

Almost surely, 2^129700947664 is an apocalyptic number.

It is an amenable number.

129700947664 is a deficient number, since it is larger than the sum of its proper divisors (121594638466).

129700947664 is an equidigital number, since it uses as much as digits as its factorization.

129700947664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8106309237 (or 8106309231 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 129700947664 in words is "one hundred twenty-nine billion, seven hundred million, nine hundred forty-seven thousand, six hundred sixty-four".