20672033474377 has 12 divisors (see below), whose sum is σ = 21959934130876. Its totient is φ = 19455704432640.

The previous prime is 20672033474363. The next prime is 20672033474383. The reversal of 20672033474377 is 77347433027602.

It can be written as a sum of positive squares in 6 ways, for example, as 176348763721 + 20495684710656 = 419939^2 + 4527216^2 .

It is not a de Polignac number, because 20672033474377 - 2⁷ = 20672033474249 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20672033475377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17568073 + ... + 18707785.

Almost surely, 2^{20672033474377} is an apocalyptic number.

It is an amenable number.

20672033474377 is a deficient number, since it is larger than the sum of its proper divisors (1287900656499).

20672033474377 is a wasteful number, since it uses less digits than its factorization.

20672033474377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202508 (or 1202491 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 55.

The spelling of 20672033474377 in words is "twenty trillion, six hundred seventy-two billion, thirty-three million, four hundred seventy-four thousand, three hundred seventy-seven".