68660070560 has 96 divisors (see below), whose sum is σ = 177673804560. Its totient is φ = 24957140992.

The previous prime is 68660070553. The next prime is 68660070593. The reversal of 68660070560 is 6507006686.

It can be written as a sum of positive squares in 8 ways, for example, as 58442095504 + 10217975056 = 241748^2 + 101084^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356339 + ... + 514098.

Almost surely, 2^68660070560 is an apocalyptic number.

It is an amenable number.

68660070560 is an abundant number, since it is smaller than the sum of its proper divisors (109013734000).

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

68660070560 is a wasteful number, since it uses less digits than its factorization.

68660070560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870498 (or 870490 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 68660070560 in words is "sixty-eight billion, six hundred sixty million, seventy thousand, five hundred sixty".