65717192970 has 480 divisors, whose sum is σ = 219821532480. Its totient is φ = 13925882880.

The previous prime is 65717192963. The next prime is 65717192993. The reversal of 65717192970 is 7929171756.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 28608862 + ... + 28611158.

It is an arithmetic number, because the mean of its divisors is an integer number (457961526).

Almost surely, 2^65717192970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65717192970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109910766240).

65717192970 is an abundant number, since it is smaller than the sum of its proper divisors (154104339510).

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

65717192970 is a wasteful number, since it uses less digits than its factorization.

65717192970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372 (or 2350 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 54.

The spelling of 65717192970 in words is "sixty-five billion, seven hundred seventeen million, one hundred ninety-two thousand, nine hundred seventy".