68198056 has 16 divisors (see below), whose sum is σ = 129673440. Its totient is φ = 33618480.

The previous prime is 68198023. The next prime is 68198057. The reversal of 68198056 is 65089186.

It is not an unprimeable number, because it can be changed into a prime (68198057) 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, 59466 + ... + 60601.

It is an arithmetic number, because the mean of its divisors is an integer number (8104590).

Almost surely, 2^68198056 is an apocalyptic number.

It is an amenable number.

68198056 is a deficient number, since it is larger than the sum of its proper divisors (61475384).

68198056 is a wasteful number, since it uses less digits than its factorization.

68198056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120144 (or 120140 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 68198056 is about 8258.2114286327. The cubic root of 68198056 is about 408.5613987743.

The spelling of 68198056 in words is "sixty-eight million, one hundred ninety-eight thousand, fifty-six".