161077320303264 has 72 divisors (see below), whose sum is σ = 459527091945012. Its totient is φ = 53520898728960.

The previous prime is 161077320303253. The next prime is 161077320303329. The reversal of 161077320303264 is 462303023770161.

161077320303264 is a `hidden beast` number, since 1 + 6 + 10 + 7 + 7 + 320 + 303 + 2 + 6 + 4 = 666.

161077320303264 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 155433369813264 + 5643950490000 = 12467292^2 + 2375700^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 893354347 + ... + 893534634.

Almost surely, 2^{161077320303264} is an apocalyptic number.

It is an amenable number.

161077320303264 is an abundant number, since it is smaller than the sum of its proper divisors (298449771641748).

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

161077320303264 is a wasteful number, since it uses less digits than its factorization.

161077320303264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786889310 (or 1786889299 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 161077320303264 in words is "one hundred sixty-one trillion, seventy-seven billion, three hundred twenty million, three hundred three thousand, two hundred sixty-four".