20429357176 has 8 divisors (see below), whose sum is σ = 38305044720. Its totient is φ = 10214678584.

The previous prime is 20429357153. The next prime is 20429357191. The reversal of 20429357176 is 67175392402.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276834816 + ... + 1276834831.

It is an arithmetic number, because the mean of its divisors is an integer number (4788130590).

Almost surely, 2^20429357176 is an apocalyptic number.

It is an amenable number.

20429357176 is a deficient number, since it is larger than the sum of its proper divisors (17875687544).

20429357176 is a wasteful number, since it uses less digits than its factorization.

20429357176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553669653 (or 2553669649 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 20429357176 in words is "twenty billion, four hundred twenty-nine million, three hundred fifty-seven thousand, one hundred seventy-six".