155955456 has 216 divisors, whose sum is σ = 491050560. Its totient is φ = 49268736.

The previous prime is 155955427. The next prime is 155955487. The reversal of 155955456 is 654559551.

155955456 is a `hidden beast` number, since 1 + 5 + 595 + 5 + 4 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

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, 1430730 + ... + 1430838.

Almost surely, 2^155955456 is an apocalyptic number.

155955456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155955456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245525280).

155955456 is an abundant number, since it is smaller than the sum of its proper divisors (335095104).

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

155955456 is an equidigital number, since it uses as much as digits as its factorization.

155955456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 137 counting only the distinct ones).

The product of its digits is 675000, while the sum is 45.

The square root of 155955456 is about 12488.2126823657. The cubic root of 155955456 is about 538.2700191897.

The spelling of 155955456 in words is "one hundred fifty-five million, nine hundred fifty-five thousand, four hundred fifty-six".