65701225408 has 448 divisors, whose sum is σ = 176969318400. Its totient is φ = 23474810880.

The previous prime is 65701225363. The next prime is 65701225417. The reversal of 65701225408 is 80452210756.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×65701225408² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 367045863 + ... + 367046041.

It is an arithmetic number, because the mean of its divisors is an integer number (395020800).

Almost surely, 2^65701225408 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 65701225408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88484659200).

65701225408 is an abundant number, since it is smaller than the sum of its proper divisors (111268092992).

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

65701225408 is a wasteful number, since it uses less digits than its factorization.

65701225408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 65701225408 in words is "sixty-five billion, seven hundred one million, two hundred twenty-five thousand, four hundred eight".