155511264 has 24 divisors (see below), whose sum is σ = 408217320. Its totient is φ = 51837056.

The previous prime is 155511247. The next prime is 155511269. The reversal of 155511264 is 462115551.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155511269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809859 + ... + 810050.

It is an arithmetic number, because the mean of its divisors is an integer number (17009055).

Almost surely, 2^155511264 is an apocalyptic number.

It is an amenable number.

155511264 is an abundant number, since it is smaller than the sum of its proper divisors (252706056).

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

155511264 is a wasteful number, since it uses less digits than its factorization.

155511264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619922 (or 1619914 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 155511264 is about 12470.4155504137. The cubic root of 155511264 is about 537.7585000691.

The spelling of 155511264 in words is "one hundred fifty-five million, five hundred eleven thousand, two hundred sixty-four".