68653612164 has 24 divisors (see below), whose sum is σ = 162447985728. Its totient is φ = 22562219680.

The previous prime is 68653612151. The next prime is 68653612187. The reversal of 68653612164 is 46121635686.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40288827 + ... + 40290530.

It is an arithmetic number, because the mean of its divisors is an integer number (6768666072).

Almost surely, 2^68653612164 is an apocalyptic number.

It is an amenable number.

68653612164 is an abundant number, since it is smaller than the sum of its proper divisors (93794373564).

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

68653612164 is a wasteful number, since it uses less digits than its factorization.

68653612164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80579435 (or 80579433 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 68653612164 in words is "sixty-eight billion, six hundred fifty-three million, six hundred twelve thousand, one hundred sixty-four".