155884764672 has 720 divisors, whose sum is σ = 588362654880. Its totient is φ = 39307935744.

The previous prime is 155884764599. The next prime is 155884764701. The reversal of 155884764672 is 276467488551.

155884764672 is a `hidden beast` number, since 1 + 5 + 58 + 8 + 476 + 46 + 72 = 666.

155884764672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67510654 + ... + 67512962.

It is an arithmetic number, because the mean of its divisors is an integer number (817170354).

Almost surely, 2^155884764672 is an apocalyptic number.

155884764672 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 155884764672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294181327440).

155884764672 is an abundant number, since it is smaller than the sum of its proper divisors (432477890208).

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

155884764672 is a wasteful number, since it uses less digits than its factorization.

155884764672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2357 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 63.

The spelling of 155884764672 in words is "one hundred fifty-five billion, eight hundred eighty-four million, seven hundred sixty-four thousand, six hundred seventy-two".