2155433615316 has 36 divisors (see below), whose sum is σ = 5498443050100. Its totient is φ = 711886330368.

The previous prime is 2155433615311. The next prime is 2155433615333. The reversal of 2155433615316 is 6135163345512.

2155433615316 is a `hidden beast` number, since 2 + 1 + 5 + 54 + 3 + 3 + 61 + 531 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1265422508100 + 890011107216 = 1124910^2 + 943404^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155433615311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274643581 + ... + 274651428.

Almost surely, 2^{2155433615316} is an apocalyptic number.

It is an amenable number.

2155433615316 is an abundant number, since it is smaller than the sum of its proper divisors (3343009434784).

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

2155433615316 is a wasteful number, since it uses less digits than its factorization.

2155433615316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549295128 (or 549295123 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The spelling of 2155433615316 in words is "two trillion, one hundred fifty-five billion, four hundred thirty-three million, six hundred fifteen thousand, three hundred sixteen".