129994937855 has 16 divisors (see below), whose sum is σ = 158566636800. Its totient is φ = 102281141760.

The previous prime is 129994937819. The next prime is 129994937873. The reversal of 129994937855 is 558739499921.

It is not a de Polignac number, because 129994937855 - 2¹⁸ = 129994675711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5697911 + ... + 5720679.

It is an arithmetic number, because the mean of its divisors is an integer number (9910414800).

Almost surely, 2^129994937855 is an apocalyptic number.

129994937855 is a deficient number, since it is larger than the sum of its proper divisors (28571698945).

129994937855 is a wasteful number, since it uses less digits than its factorization.

129994937855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41554.

The product of its digits is 220449600, while the sum is 71.

The spelling of 129994937855 in words is "one hundred twenty-nine billion, nine hundred ninety-four million, nine hundred thirty-seven thousand, eight hundred fifty-five".