155286751872 has 256 divisors, whose sum is σ = 500114062080. Its totient is φ = 41675980800.

The previous prime is 155286751847. The next prime is 155286751883. The reversal of 155286751872 is 278157682551.

It is a super-2 number, since 2×155286751872² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25449622 + ... + 25455722.

It is an arithmetic number, because the mean of its divisors is an integer number (1953570555).

Almost surely, 2^155286751872 is an apocalyptic number.

155286751872 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 155286751872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250057031040).

155286751872 is an abundant number, since it is smaller than the sum of its proper divisors (344827310208).

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

155286751872 is a wasteful number, since it uses less digits than its factorization.

155286751872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699 (or 6687 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 57.

The spelling of 155286751872 in words is "one hundred fifty-five billion, two hundred eighty-six million, seven hundred fifty-one thousand, eight hundred seventy-two".