65863402000 has 80 divisors (see below), whose sum is σ = 173735737344. Its totient is φ = 23950320000.

The previous prime is 65863401977. The next prime is 65863402037. The reversal of 65863402000 is 20436856.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1474896 + ... + 1518895.

Almost surely, 2^65863402000 is an apocalyptic number.

It is an amenable number.

65863402000 is an abundant number, since it is smaller than the sum of its proper divisors (107872335344).

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

65863402000 is a wasteful number, since it uses less digits than its factorization.

65863402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993825 (or 2993809 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 65863402000 its reverse (20436856), we get a palindrome (65883838856).

The spelling of 65863402000 in words is "sixty-five billion, eight hundred sixty-three million, four hundred two thousand".