155676672 has 156 divisors (see below), whose sum is σ = 465117744. Its totient is φ = 50135040.

The previous prime is 155676623. The next prime is 155676707. The reversal of 155676672 is 276676551.

155676672 is a `hidden beast` number, since 15 + 567 + 6 + 6 + 72 = 666.

155676672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1511373 + ... + 1511475.

It is an arithmetic number, because the mean of its divisors is an integer number (2981524).

Almost surely, 2^155676672 is an apocalyptic number.

155676672 is a gapful number since it is divisible by the number (12) 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 155676672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232558872).

155676672 is an abundant number, since it is smaller than the sum of its proper divisors (309441072).

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

155676672 is a wasteful number, since it uses less digits than its factorization.

155676672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 149 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 155676672 is about 12477.0458041958. The cubic root of 155676672 is about 537.9490929937.

The spelling of 155676672 in words is "one hundred fifty-five million, six hundred seventy-six thousand, six hundred seventy-two".