365980646864 has 40 divisors (see below), whose sum is σ = 820643784960. Its totient is φ = 154863416448.

The previous prime is 365980646813. The next prime is 365980646869. The reversal of 365980646864 is 468646089563.

It is a self number, because there is not a number n which added to its sum of digits gives 365980646864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365980646869) 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, 20672699 + ... + 20690394.

It is an arithmetic number, because the mean of its divisors is an integer number (20516094624).

Almost surely, 2^365980646864 is an apocalyptic number.

It is an amenable number.

365980646864 is an abundant number, since it is smaller than the sum of its proper divisors (454663138096).

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

365980646864 is a wasteful number, since it uses less digits than its factorization.

365980646864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41363187 (or 41363181 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 65.

The spelling of 365980646864 in words is "three hundred sixty-five billion, nine hundred eighty million, six hundred forty-six thousand, eight hundred sixty-four".