155070631872 has 224 divisors, whose sum is σ = 507877876800. Its totient is φ = 46068535296.

The previous prime is 155070631861. The next prime is 155070631879. The reversal of 155070631872 is 278136070551.

It is a happy number.

155070631872 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 7 + 0 + 631 + 8 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155070631879) by changing a digit.

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, 532438 + ... + 770474.

It is an arithmetic number, because the mean of its divisors is an integer number (2267311950).

Almost surely, 2^155070631872 is an apocalyptic number.

155070631872 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 155070631872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253938938400).

155070631872 is an abundant number, since it is smaller than the sum of its proper divisors (352807244928).

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

155070631872 is a wasteful number, since it uses less digits than its factorization.

155070631872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238100 (or 238084 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 155070631872 in words is "one hundred fifty-five billion, seventy million, six hundred thirty-one thousand, eight hundred seventy-two".