68557661062 has 32 divisors (see below), whose sum is σ = 116276186880. Its totient is φ = 30030325920.

The previous prime is 68557661027. The next prime is 68557661077. The reversal of 68557661062 is 26016675586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230943 + ... + 436405.

It is an arithmetic number, because the mean of its divisors is an integer number (3633630840).

Almost surely, 2^68557661062 is an apocalyptic number.

68557661062 is a deficient number, since it is larger than the sum of its proper divisors (47718525818).

68557661062 is a wasteful number, since it uses less digits than its factorization.

68557661062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206028.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 68557661062 in words is "sixty-eight billion, five hundred fifty-seven million, six hundred sixty-one thousand, sixty-two".