68161698 has 24 divisors (see below), whose sum is σ = 161109936. Its totient is φ = 20655000.

The previous prime is 68161693. The next prime is 68161699. The reversal of 68161698 is 89616186.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68161693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171928 + ... + 172323.

It is an arithmetic number, because the mean of its divisors is an integer number (6712914).

Almost surely, 2^68161698 is an apocalyptic number.

68161698 is an abundant number, since it is smaller than the sum of its proper divisors (92948238).

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

68161698 is a wasteful number, since it uses less digits than its factorization.

68161698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344270 (or 344267 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 68161698 is about 8256.0098110407. The cubic root of 68161698 is about 408.4887812798.

The spelling of 68161698 in words is "sixty-eight million, one hundred sixty-one thousand, six hundred ninety-eight".