20005157625663 has 16 divisors (see below), whose sum is σ = 30499391525120. Its totient is φ = 11425765464576.

The previous prime is 20005157625659. The next prime is 20005157625737. The reversal of 20005157625663 is 36652675150002.

It is not a de Polignac number, because 20005157625663 - 2² = 20005157625659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005157625653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239673058 + ... + 239756511.

It is an arithmetic number, because the mean of its divisors is an integer number (1906211970320).

Almost surely, 2^{20005157625663} is an apocalyptic number.

20005157625663 is a deficient number, since it is larger than the sum of its proper divisors (10494233899457).

20005157625663 is a wasteful number, since it uses less digits than its factorization.

20005157625663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479431566.

The product of its (nonzero) digits is 2268000, while the sum is 48.

The spelling of 20005157625663 in words is "twenty trillion, five billion, one hundred fifty-seven million, six hundred twenty-five thousand, six hundred sixty-three".