66962487952 has 10 divisors (see below), whose sum is σ = 129739820438. Its totient is φ = 33481243968.

The previous prime is 66962487947. The next prime is 66962487953. The reversal of 66962487952 is 25978426966.

It can be written as a sum of positive squares in only one way, i.e., 35027368336 + 31935119616 = 187156^2 + 178704^2 .

It is not an unprimeable number, because it can be changed into a prime (66962487953) by changing a digit.

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 as a sum of consecutive naturals, namely, 2092577733 + ... + 2092577764.

Almost surely, 2^66962487952 is an apocalyptic number.

It is an amenable number.

66962487952 is a deficient number, since it is larger than the sum of its proper divisors (62777332486).

66962487952 is a wasteful number, since it uses less digits than its factorization.

66962487952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185155505 (or 4185155499 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 64.

The spelling of 66962487952 in words is "sixty-six billion, nine hundred sixty-two million, four hundred eighty-seven thousand, nine hundred fifty-two".