129906349560 has 128 divisors (see below), whose sum is σ = 466330536000. Its totient is φ = 31976944128.

The previous prime is 129906349543. The next prime is 129906349583. The reversal of 129906349560 is 65943609921.

129906349560 is a `hidden beast` number, since 1 + 2 + 9 + 90 + 6 + 3 + 495 + 60 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 129906349497 and 129906349506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4612255 + ... + 4640334.

Almost surely, 2^129906349560 is an apocalyptic number.

129906349560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129906349560 is an abundant number, since it is smaller than the sum of its proper divisors (336424186440).

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

129906349560 is a wasteful number, since it uses less digits than its factorization.

129906349560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252622 (or 9252612 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 129906349560 in words is "one hundred twenty-nine billion, nine hundred six million, three hundred forty-nine thousand, five hundred sixty".