161631447714 has 48 divisors (see below), whose sum is σ = 382707303264. Its totient is φ = 48893414400.

The previous prime is 161631447701. The next prime is 161631447751. The reversal of 161631447714 is 417744136161.

161631447714 is a `hidden beast` number, since 1 + 6 + 1 + 631 + 4 + 4 + 7 + 7 + 1 + 4 = 666.

It is a super-2 number, since 2×161631447714² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161631447714.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601759 + ... + 827874.

It is an arithmetic number, because the mean of its divisors is an integer number (7973068818).

Almost surely, 2^161631447714 is an apocalyptic number.

161631447714 is an abundant number, since it is smaller than the sum of its proper divisors (221075855550).

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

161631447714 is a wasteful number, since it uses less digits than its factorization.

161631447714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430223 (or 1430220 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The spelling of 161631447714 in words is "one hundred sixty-one billion, six hundred thirty-one million, four hundred forty-seven thousand, seven hundred fourteen".