65699541996 has 24 divisors (see below), whose sum is σ = 167235198144. Its totient is φ = 19908952080.

The previous prime is 65699541983. The next prime is 65699542009. The reversal of 65699541996 is 69914599656.

It is an interprime number because it is at equal distance from previous prime (65699541983) and next prime (65699542009).

It is a self number, because there is not a number n which added to its sum of digits gives 65699541996.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248861770 + ... + 248862033.

It is an arithmetic number, because the mean of its divisors is an integer number (6968133256).

Almost surely, 2^65699541996 is an apocalyptic number.

65699541996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

65699541996 is an abundant number, since it is smaller than the sum of its proper divisors (101535656148).

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

65699541996 is a wasteful number, since it uses less digits than its factorization.

65699541996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497723821 (or 497723819 counting only the distinct ones).

The product of its digits is 141717600, while the sum is 69.

The spelling of 65699541996 in words is "sixty-five billion, six hundred ninety-nine million, five hundred forty-one thousand, nine hundred ninety-six".