65700663800 has 48 divisors (see below), whose sum is σ = 159395534640. Its totient is φ = 25137643520.

The previous prime is 65700663797. The next prime is 65700663811. The reversal of 65700663800 is 836600756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7136777 + ... + 7145976.

It is an arithmetic number, because the mean of its divisors is an integer number (3320740305).

Almost surely, 2^65700663800 is an apocalyptic number.

It is an amenable number.

65700663800 is an abundant number, since it is smaller than the sum of its proper divisors (93694870840).

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

65700663800 is a wasteful number, since it uses less digits than its factorization.

65700663800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282792 (or 14282783 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 65700663800 in words is "sixty-five billion, seven hundred million, six hundred sixty-three thousand, eight hundred".