154522485864 has 128 divisors (see below), whose sum is σ = 454706524800. Its totient is φ = 48453258240.

The previous prime is 154522485863. The next prime is 154522485899. The reversal of 154522485864 is 468584225451.

154522485864 is a `hidden beast` number, since 1 + 5 + 4 + 52 + 2 + 4 + 8 + 586 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 154522485864.

It is not an unprimeable number, because it can be changed into a prime (154522485863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8146039 + ... + 8164985.

It is an arithmetic number, because the mean of its divisors is an integer number (3552394725).

Almost surely, 2^154522485864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154522485864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227353262400).

154522485864 is an abundant number, since it is smaller than the sum of its proper divisors (300184038936).

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

154522485864 is a wasteful number, since it uses less digits than its factorization.

154522485864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200 (or 21190 counting only the distinct ones).

The product of its digits is 12288000, while the sum is 54.

The spelling of 154522485864 in words is "one hundred fifty-four billion, five hundred twenty-two million, four hundred eighty-five thousand, eight hundred sixty-four".