155748456 has 96 divisors (see below), whose sum is σ = 443626560. Its totient is φ = 49268736.

The previous prime is 155748449. The next prime is 155748469. The reversal of 155748456 is 654847551.

155748456 is a `hidden beast` number, since 1 + 557 + 48 + 4 + 56 = 666.

Its product of digits (672000) is a multiple of the sum of its prime divisors (768).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269640 + ... + 270216.

It is an arithmetic number, because the mean of its divisors is an integer number (4621110).

Almost surely, 2^155748456 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 155748456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221813280).

155748456 is an abundant number, since it is smaller than the sum of its proper divisors (287878104).

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

155748456 is a wasteful number, since it uses less digits than its factorization.

155748456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 768 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 155748456 is about 12479.9221151416. The cubic root of 155748456 is about 538.0317647760.

The spelling of 155748456 in words is "one hundred fifty-five million, seven hundred forty-eight thousand, four hundred fifty-six".