155674764 has 144 divisors (see below), whose sum is σ = 490291200. Its totient is φ = 42511392.

The previous prime is 155674751. The next prime is 155674769. The reversal of 155674764 is 467476551.

155674764 is a `hidden beast` number, since 15 + 567 + 4 + 76 + 4 = 666.

155674764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155674769) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121077 + ... + 122355.

It is an arithmetic number, because the mean of its divisors is an integer number (3404800).

Almost surely, 2^155674764 is an apocalyptic number.

155674764 is a gapful number since it is divisible by the number (14) 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 155674764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245145600).

155674764 is an abundant number, since it is smaller than the sum of its proper divisors (334616436).

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

155674764 is a wasteful number, since it uses less digits than its factorization.

155674764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1314 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 155674764 is about 12476.9693435545. The cubic root of 155674764 is about 537.9468952526.

The spelling of 155674764 in words is "one hundred fifty-five million, six hundred seventy-four thousand, seven hundred sixty-four".