65715670000 has 100 divisors (see below), whose sum is σ = 159987643816. Its totient is φ = 26140320000.

The previous prime is 65715669991. The next prime is 65715670001. The reversal of 65715670000 is 7651756.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65715670001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1791847 + ... + 1828153.

Almost surely, 2^65715670000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65715670000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79993821908).

65715670000 is an abundant number, since it is smaller than the sum of its proper divisors (94271973816).

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

65715670000 is a wasteful number, since it uses less digits than its factorization.

65715670000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36516 (or 36495 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 65715670000 in words is "sixty-five billion, seven hundred fifteen million, six hundred seventy thousand".