39999953020160 has 432 divisors, whose sum is σ = 115114444549776. Its totient is φ = 13271107239936.

The previous prime is 39999953020151. The next prime is 39999953020171. The reversal of 39999953020160 is 6102035999993.

It can be written as a sum of positive squares in 8 ways, for example, as 8127334319104 + 31872618701056 = 2850848^2 + 5645584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242581262 + ... + 242746098.

It is an arithmetic number, because the mean of its divisors is an integer number (266468621643).

Almost surely, 2^{39999953020160} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39999953020160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57557222274888).

39999953020160 is an abundant number, since it is smaller than the sum of its proper divisors (75114491529616).

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

39999953020160 is a wasteful number, since it uses less digits than its factorization.

39999953020160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164998 (or 164977 counting only the distinct ones).

The product of its (nonzero) digits is 31886460, while the sum is 65.

The spelling of 39999953020160 in words is "thirty-nine trillion, nine hundred ninety-nine billion, nine hundred fifty-three million, twenty thousand, one hundred sixty".