154640772032 has 56 divisors (see below), whose sum is σ = 314903358000. Its totient is φ = 75305373696.

The previous prime is 154640772029. The next prime is 154640772037. The reversal of 154640772032 is 230277046451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154640772037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879944 + ... + 1040952.

It is an arithmetic number, because the mean of its divisors is an integer number (5623274250).

Almost surely, 2^154640772032 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 154640772032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157451679000).

154640772032 is an abundant number, since it is smaller than the sum of its proper divisors (160262585968).

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

154640772032 is a wasteful number, since it uses less digits than its factorization.

154640772032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161413 (or 161403 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 154640772032 in words is "one hundred fifty-four billion, six hundred forty million, seven hundred seventy-two thousand, thirty-two".