161762868004 has 12 divisors (see below), whose sum is σ = 283118068828. Its totient is φ = 80871991200.

The previous prime is 161762867993. The next prime is 161762868019. The reversal of 161762868004 is 400868267161.

161762868004 is digitally balanced in base 2, because in such base 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 14007195904 + 147755672100 = 118352^2 + 384390^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2322087 + ... + 2390734.

Almost surely, 2^161762868004 is an apocalyptic number.

It is an amenable number.

161762868004 is a deficient number, since it is larger than the sum of its proper divisors (121355200824).

161762868004 is a wasteful number, since it uses less digits than its factorization.

161762868004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721406 (or 4721404 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 161762868004 in words is "one hundred sixty-one billion, seven hundred sixty-two million, eight hundred sixty-eight thousand, four".