20672932176 has 120 divisors (see below), whose sum is σ = 63057068256. Its totient is φ = 6284217600.

The previous prime is 20672932157. The next prime is 20672932249. The reversal of 20672932176 is 67123927602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88851 + ... + 221901.

Almost surely, 2^20672932176 is an apocalyptic number.

20672932176 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20672932176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31528534128).

20672932176 is an abundant number, since it is smaller than the sum of its proper divisors (42384136080).

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

20672932176 is a wasteful number, since it uses less digits than its factorization.

20672932176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133161 (or 133152 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 20672932176 in words is "twenty billion, six hundred seventy-two million, nine hundred thirty-two thousand, one hundred seventy-six".