154436072144 has 80 divisors (see below), whose sum is σ = 320885712000. Its totient is φ = 71744778240.

The previous prime is 154436072129. The next prime is 154436072177. The reversal of 154436072144 is 441270634451.

It is a congruent 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, 51494357 + ... + 51497355.

It is an arithmetic number, because the mean of its divisors is an integer number (4011071400).

Almost surely, 2^154436072144 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 154436072144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160442856000).

154436072144 is an abundant number, since it is smaller than the sum of its proper divisors (166449639856).

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

154436072144 is a wasteful number, since it uses less digits than its factorization.

154436072144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388 (or 5382 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 154436072144 in words is "one hundred fifty-four billion, four hundred thirty-six million, seventy-two thousand, one hundred forty-four".