65677702909968 has 80 divisors (see below), whose sum is σ = 188732832200640. Its totient is φ = 21867774114816.

The previous prime is 65677702909967. The next prime is 65677702909969. The reversal of 65677702909968 is 86990920777656.

65677702909968 is a `hidden beast` number, since 6 + 56 + 77 + 70 + 290 + 99 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (65677702909967) and next prime (65677702909969).

It is a super-2 number, since 2×65677702909968² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65677702909967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85706721 + ... + 86469632.

It is an arithmetic number, because the mean of its divisors is an integer number (2359160402508).

Almost surely, 2^{65677702909968} is an apocalyptic number.

It is an amenable number.

65677702909968 is an abundant number, since it is smaller than the sum of its proper divisors (123055129290672).

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

65677702909968 is a wasteful number, since it uses less digits than its factorization.

65677702909968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172177253 (or 172177241 counting only the distinct ones).

The product of its (nonzero) digits is 4320812160, while the sum is 81.

The spelling of 65677702909968 in words is "sixty-five trillion, six hundred seventy-seven billion, seven hundred two million, nine hundred nine thousand, nine hundred sixty-eight".