68666066646400 has 96 divisors (see below), whose sum is σ = 175475837577600. Its totient is φ = 26519308462080.

The previous prime is 68666066646379. The next prime is 68666066646449. The reversal of 68666066646400 is 464666066686.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369875232 + ... + 370060831.

It is an arithmetic number, because the mean of its divisors is an integer number (1827873308100).

Almost surely, 2^{68666066646400} is an apocalyptic number.

It is an amenable number.

68666066646400 is an abundant number, since it is smaller than the sum of its proper divisors (106809770931200).

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

68666066646400 is a wasteful number, since it uses less digits than its factorization.

68666066646400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739936116 (or 739936099 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 64.

The spelling of 68666066646400 in words is "sixty-eight trillion, six hundred sixty-six billion, sixty-six million, six hundred forty-six thousand, four hundred".