68646164 has 24 divisors (see below), whose sum is σ = 127142400. Its totient is φ = 32339520.

The previous prime is 68646157. The next prime is 68646169. The reversal of 68646164 is 46164686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68646169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12152 + ... + 16880.

It is an arithmetic number, because the mean of its divisors is an integer number (5297600).

Almost surely, 2^68646164 is an apocalyptic number.

It is an amenable number.

68646164 is a deficient number, since it is larger than the sum of its proper divisors (58496236).

68646164 is a wasteful number, since it uses less digits than its factorization.

68646164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4941 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 68646164 is about 8285.2980634374. The cubic root of 68646164 is about 409.4542888513.

The spelling of 68646164 in words is "sixty-eight million, six hundred forty-six thousand, one hundred sixty-four".