20975965227 has 48 divisors (see below), whose sum is σ = 36388800000. Its totient is φ = 11906773200.

The previous prime is 20975965103. The next prime is 20975965229. The reversal of 20975965227 is 72256957902.

20975965227 is a `hidden beast` number, since 20 + 9 + 7 + 5 + 96 + 522 + 7 = 666.

It is not a de Polignac number, because 20975965227 - 2¹⁶ = 20975899691 is a prime.

It is a super-2 number, since 2×20975965227² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20975965229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147274 + ... + 252272.

It is an arithmetic number, because the mean of its divisors is an integer number (758100000).

Almost surely, 2^20975965227 is an apocalyptic number.

20975965227 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20975965227 is a deficient number, since it is larger than the sum of its proper divisors (15412834773).

20975965227 is a wasteful number, since it uses less digits than its factorization.

20975965227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105173 (or 105160 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 20975965227 in words is "twenty billion, nine hundred seventy-five million, nine hundred sixty-five thousand, two hundred twenty-seven".