651566666060 has 12 divisors (see below), whose sum is σ = 1368289998768. Its totient is φ = 260626666416.

The previous prime is 651566666053. The next prime is 651566666119. The reversal of 651566666060 is 60666665156.

It is a junction number, because it is equal to n+sod(n) for n = 651566665993 and 651566666011.

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 3 ways as a sum of consecutive naturals, for example, 16289166632 + ... + 16289166671.

It is an arithmetic number, because the mean of its divisors is an integer number (114024166564).

Almost surely, 2^651566666060 is an apocalyptic number.

It is an amenable number.

651566666060 is an abundant number, since it is smaller than the sum of its proper divisors (716723332708).

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

651566666060 is a wasteful number, since it uses less digits than its factorization.

651566666060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32578333312 (or 32578333310 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 651566666060 in words is "six hundred fifty-one billion, five hundred sixty-six million, six hundred sixty-six thousand, sixty".