68717616 has 40 divisors (see below), whose sum is σ = 193660224. Its totient is φ = 20823360.

The previous prime is 68717611. The next prime is 68717657. The reversal of 68717616 is 61671786.

It is a super-2 number, since 2×68717616² = 9444221497446912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68717611) 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, 64546 + ... + 65601.

Almost surely, 2^68717616 is an apocalyptic number.

68717616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

68717616 is an abundant number, since it is smaller than the sum of its proper divisors (124942608).

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

68717616 is a wasteful number, since it uses less digits than its factorization.

68717616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130169 (or 130163 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 68717616 is about 8289.6089171927. The cubic root of 68717616 is about 409.5963030164.

The spelling of 68717616 in words is "sixty-eight million, seven hundred seventeen thousand, six hundred sixteen".