20395642941 has 24 divisors (see below), whose sum is σ = 31377228064. Its totient is φ = 13229600400.

The previous prime is 20395642919. The next prime is 20395642973. The reversal of 20395642941 is 14924659302.

20395642941 is a `hidden beast` number, since 20 + 3 + 9 + 564 + 29 + 41 = 666.

It is not a de Polignac number, because 20395642941 - 2⁹ = 20395642429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20395649941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1125235 + ... + 1143216.

Almost surely, 2^20395642941 is an apocalyptic number.

It is an amenable number.

20395642941 is a deficient number, since it is larger than the sum of its proper divisors (10981585123).

20395642941 is an equidigital number, since it uses as much as digits as its factorization.

20395642941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268503 (or 2268491 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 20395642941 in words is "twenty billion, three hundred ninety-five million, six hundred forty-two thousand, nine hundred forty-one".