68565660 has 36 divisors (see below), whose sum is σ = 192163608. Its totient is φ = 18267072.

The previous prime is 68565659. The next prime is 68565667. The reversal of 68565660 is 6656586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68565667) 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, 63606 + ... + 64674.

It is an arithmetic number, because the mean of its divisors is an integer number (5337878).

Almost surely, 2^68565660 is an apocalyptic number.

68565660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68565660 is an abundant number, since it is smaller than the sum of its proper divisors (123597948).

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

68565660 is a wasteful number, since it uses less digits than its factorization.

68565660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 68565660 is about 8280.4383941915. The cubic root of 68565660 is about 409.2941653032.

The spelling of 68565660 in words is "sixty-eight million, five hundred sixty-five thousand, six hundred sixty".