20154266104 has 64 divisors (see below), whose sum is σ = 43596771840. Its totient is φ = 8556105600.

The previous prime is 20154266087. The next prime is 20154266149. The reversal of 20154266104 is 40166245102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2738029 + ... + 2745379.

It is an arithmetic number, because the mean of its divisors is an integer number (681199560).

Almost surely, 2^20154266104 is an apocalyptic number.

It is an amenable number.

20154266104 is an abundant number, since it is smaller than the sum of its proper divisors (23442505736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20154266104 is a wasteful number, since it uses less digits than its factorization.

20154266104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820 (or 7816 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 20154266104 in words is "twenty billion, one hundred fifty-four million, two hundred sixty-six thousand, one hundred four".