66037306698 has 64 divisors (see below), whose sum is σ = 160132608000. Its totient is φ = 20006034480.

The previous prime is 66037306663. The next prime is 66037306747. The reversal of 66037306698 is 89660373066.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2650503 + ... + 2675301.

It is an arithmetic number, because the mean of its divisors is an integer number (2502072000).

Almost surely, 2^66037306698 is an apocalyptic number.

66037306698 is an abundant number, since it is smaller than the sum of its proper divisors (94095301302).

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

66037306698 is a wasteful number, since it uses less digits than its factorization.

66037306698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29304 (or 29298 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 66037306698 in words is "sixty-six billion, thirty-seven million, three hundred six thousand, six hundred ninety-eight".