20364663154 has 32 divisors (see below), whose sum is σ = 35596552896. Its totient is φ = 8635038720.

The previous prime is 20364663149. The next prime is 20364663161. The reversal of 20364663154 is 45136646302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198672 + ... + 283195.

It is an arithmetic number, because the mean of its divisors is an integer number (1112392278).

Almost surely, 2^20364663154 is an apocalyptic number.

20364663154 is a deficient number, since it is larger than the sum of its proper divisors (15231889742).

20364663154 is a wasteful number, since it uses less digits than its factorization.

20364663154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482010.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 20364663154 in words is "twenty billion, three hundred sixty-four million, six hundred sixty-three thousand, one hundred fifty-four".