20670293271 has 8 divisors (see below), whose sum is σ = 27561448944. Its totient is φ = 13779666560.

The previous prime is 20670293263. The next prime is 20670293299. The reversal of 20670293271 is 17239207602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20670293271 - 2³ = 20670293263 is a prime.

It is a super-2 number, since 2×20670293271² (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 (20670293221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29700 + ... + 205481.

It is an arithmetic number, because the mean of its divisors is an integer number (3445181118).

Almost surely, 2^20670293271 is an apocalyptic number.

20670293271 is a deficient number, since it is larger than the sum of its proper divisors (6891155673).

20670293271 is a wasteful number, since it uses less digits than its factorization.

20670293271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264481.

The product of its (nonzero) digits is 63504, while the sum is 39.

The spelling of 20670293271 in words is "twenty billion, six hundred seventy million, two hundred ninety-three thousand, two hundred seventy-one".