20673162669 has 16 divisors (see below), whose sum is σ = 28092889152. Its totient is φ = 13517931648.

The previous prime is 20673162661. The next prime is 20673162673. The reversal of 20673162669 is 96626137602.

It is not a de Polignac number, because 20673162669 - 2³ = 20673162661 is a prime.

It is a super-2 number, since 2×20673162669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20673162661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553194 + ... + 589380.

It is an arithmetic number, because the mean of its divisors is an integer number (1755805572).

Almost surely, 2^20673162669 is an apocalyptic number.

It is an amenable number.

20673162669 is a deficient number, since it is larger than the sum of its proper divisors (7419726483).

20673162669 is a wasteful number, since it uses less digits than its factorization.

20673162669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39836.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 20673162669 in words is "twenty billion, six hundred seventy-three million, one hundred sixty-two thousand, six hundred sixty-nine".