20612271667775 has 6 divisors (see below), whose sum is σ = 25559216868072. Its totient is φ = 16489817334200.

The previous prime is 20612271667769. The next prime is 20612271667783. The reversal of 20612271667775 is 57776617221602.

It is not a de Polignac number, because 20612271667775 - 2³⁴ = 20595091798591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412245433331 + ... + 412245433380.

It is an arithmetic number, because the mean of its divisors is an integer number (4259869478012).

Almost surely, 2^{20612271667775} is an apocalyptic number.

20612271667775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20612271667775 is a deficient number, since it is larger than the sum of its proper divisors (4946945200297).

20612271667775 is an equidigital number, since it uses as much as digits as its factorization.

20612271667775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824490866721 (or 824490866716 counting only the distinct ones).

The product of its (nonzero) digits is 20744640, while the sum is 59.

The spelling of 20612271667775 in words is "twenty trillion, six hundred twelve billion, two hundred seventy-one million, six hundred sixty-seven thousand, seven hundred seventy-five".