68066746740 has 96 divisors (see below), whose sum is σ = 213742488960. Its totient is φ = 17981480448.

The previous prime is 68066746739. The next prime is 68066746751. The reversal of 68066746740 is 4764766086.

It is a happy number.

68066746740 is a `hidden beast` number, since 6 + 80 + 6 + 67 + 467 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531237 + ... + 646796.

It is an arithmetic number, because the mean of its divisors is an integer number (2226484260).

Almost surely, 2^68066746740 is an apocalyptic number.

68066746740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68066746740 is an abundant number, since it is smaller than the sum of its proper divisors (145675742220).

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

68066746740 is a wasteful number, since it uses less digits than its factorization.

68066746740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178158 (or 1178150 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 68066746740 in words is "sixty-eight billion, sixty-six million, seven hundred forty-six thousand, seven hundred forty".