65197832872 has 32 divisors (see below), whose sum is σ = 128859120000. Its totient is φ = 30840179328.

The previous prime is 65197832827. The next prime is 65197832873. The reversal of 65197832872 is 27823879156.

It is a happy number.

It is a super-2 number, since 2×65197832872² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65197832873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188997 + ... + 407572.

It is an arithmetic number, because the mean of its divisors is an integer number (4026847500).

Almost surely, 2^65197832872 is an apocalyptic number.

It is an amenable number.

65197832872 is a deficient number, since it is larger than the sum of its proper divisors (63661287128).

65197832872 is a wasteful number, since it uses less digits than its factorization.

65197832872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597313 (or 597309 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 58.

The spelling of 65197832872 in words is "sixty-five billion, one hundred ninety-seven million, eight hundred thirty-two thousand, eight hundred seventy-two".