161682750928 has 40 divisors (see below), whose sum is σ = 314964840960. Its totient is φ = 80401802880.

The previous prime is 161682750913. The next prime is 161682750953. The reversal of 161682750928 is 829057286161.

It is a happy number.

161682750928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161682750928² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 10579933 + ... + 10595203.

It is an arithmetic number, because the mean of its divisors is an integer number (7874121024).

Almost surely, 2^161682750928 is an apocalyptic number.

It is an amenable number.

161682750928 is a deficient number, since it is larger than the sum of its proper divisors (153282090032).

161682750928 is a wasteful number, since it uses less digits than its factorization.

161682750928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18835 (or 18829 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 161682750928 in words is "one hundred sixty-one billion, six hundred eighty-two million, seven hundred fifty thousand, nine hundred twenty-eight".