68161432 has 16 divisors (see below), whose sum is σ = 135320760. Its totient is φ = 32075904.

The previous prime is 68161427. The next prime is 68161433. The reversal of 68161432 is 23416186.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68161394 and 68161403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68161433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250458 + ... + 250729.

Almost surely, 2^68161432 is an apocalyptic number.

It is an amenable number.

68161432 is a deficient number, since it is larger than the sum of its proper divisors (67159328).

68161432 is a wasteful number, since it uses less digits than its factorization.

68161432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501210 (or 501206 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 68161432 is about 8255.9937015480. The cubic root of 68161432 is about 408.4882499053.

The spelling of 68161432 in words is "sixty-eight million, one hundred sixty-one thousand, four hundred thirty-two".