20154146364 has 72 divisors (see below), whose sum is σ = 55592304768. Its totient is φ = 6105589920.

The previous prime is 20154146333. The next prime is 20154146377. The reversal of 20154146364 is 46364145102.

20154146364 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 4 + 14 + 636 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2469739 + ... + 2477885.

It is an arithmetic number, because the mean of its divisors is an integer number (772115344).

Almost surely, 2^20154146364 is an apocalyptic number.

It is an amenable number.

20154146364 is an abundant number, since it is smaller than the sum of its proper divisors (35438158404).

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

20154146364 is a wasteful number, since it uses less digits than its factorization.

20154146364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14415 (or 14410 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 20154146364 in words is "twenty billion, one hundred fifty-four million, one hundred forty-six thousand, three hundred sixty-four".