155579338560 has 448 divisors, whose sum is σ = 536631367680. Its totient is φ = 38064660480.

The previous prime is 155579338547. The next prime is 155579338589. The reversal of 155579338560 is 65833975551.

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

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 155579338560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74545837 + ... + 74547923.

Almost surely, 2^155579338560 is an apocalyptic number.

155579338560 is a gapful number since it is divisible by the number (10) 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 155579338560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268315683840).

155579338560 is an abundant number, since it is smaller than the sum of its proper divisors (381052029120).

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

155579338560 is a wasteful number, since it uses less digits than its factorization.

155579338560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 17010000, while the sum is 57.

The spelling of 155579338560 in words is "one hundred fifty-five billion, five hundred seventy-nine million, three hundred thirty-eight thousand, five hundred sixty".