2155550933328 has 80 divisors (see below), whose sum is σ = 6143118023616. Its totient is φ = 647069690880.

The previous prime is 2155550933323. The next prime is 2155550933329. The reversal of 2155550933328 is 8233390555512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155550933323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42101350 + ... + 42152517.

Almost surely, 2^{2155550933328} is an apocalyptic number.

It is an amenable number.

2155550933328 is an abundant number, since it is smaller than the sum of its proper divisors (3987567090288).

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

2155550933328 is a wasteful number, since it uses less digits than its factorization.

2155550933328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84253932 (or 84253926 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 2155550933328 in words is "two trillion, one hundred fifty-five billion, five hundred fifty million, nine hundred thirty-three thousand, three hundred twenty-eight".