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BaseRepresentation
bin1000001011110…
…10110110001000
311210012022122210
410011322312020
5120034114431
610451345120
71462414503
oct405726610
9153168583
1068660616
1135836812
121abb21a0
13112bccab
14919413a
156063d46

68660616 has 32 divisors (see below), whose sum is σ = 173262240. Its totient is φ = 22672128.

The previous prime is 68660597. The next prime is 68660617. The reversal of 68660616 is 61606686.

It is not an unprimeable number, because it can be changed into a prime (68660617) 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, 10801 + ... + 15936.

It is an arithmetic number, because the mean of its divisors is an integer number (5414445).

Almost surely, 268660616 is an apocalyptic number.

It is an amenable number.

68660616 is an abundant number, since it is smaller than the sum of its proper divisors (104601624).

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

68660616 is a wasteful number, since it uses less digits than its factorization.

68660616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26853 (or 26849 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 68660616 is about 8286.1701647987. The cubic root of 68660616 is about 409.4830208193.

The spelling of 68660616 in words is "sixty-eight million, six hundred sixty thousand, six hundred sixteen".