20069570631897 has 20 divisors (see below), whose sum is σ = 30097125264756. Its totient is φ = 13327652597760.

The previous prime is 20069570631871. The next prime is 20069570631917. The reversal of 20069570631897 is 79813607596002.

20069570631897 is a `hidden beast` number, since 20 + 0 + 6 + 9 + 570 + 6 + 31 + 8 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12404336076441 + 7665234555456 = 3521979^2 + 2768616^2 .

It is not a de Polignac number, because 20069570631897 - 2²⁴ = 20069553854681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20069570631997) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 482026804 + ... + 482068437.

Almost surely, 2^{20069570631897} is an apocalyptic number.

20069570631897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20069570631897 is a deficient number, since it is larger than the sum of its proper divisors (10027554632859).

20069570631897 is an equidigital number, since it uses as much as digits as its factorization.

20069570631897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964095510 (or 964095501 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 20069570631897 in words is "twenty trillion, sixty-nine billion, five hundred seventy million, six hundred thirty-one thousand, eight hundred ninety-seven".