65942631964 has 12 divisors (see below), whose sum is σ = 125890479288. Its totient is φ = 29973923600.

The previous prime is 65942631947. The next prime is 65942631971. The reversal of 65942631964 is 46913624956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749348047 + ... + 749348134.

It is an arithmetic number, because the mean of its divisors is an integer number (10490873274).

Almost surely, 2^65942631964 is an apocalyptic number.

It is an amenable number.

65942631964 is a deficient number, since it is larger than the sum of its proper divisors (59947847324).

65942631964 is a wasteful number, since it uses less digits than its factorization.

65942631964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498696196 (or 1498696194 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 55.

The spelling of 65942631964 in words is "sixty-five billion, nine hundred forty-two million, six hundred thirty-one thousand, nine hundred sixty-four".