65419497216 has 108 divisors (see below), whose sum is σ = 189128707768. Its totient is φ = 21747750912.

The previous prime is 65419497167. The next prime is 65419497263. The reversal of 65419497216 is 61279491456.

65419497216 is a `hidden beast` number, since 6 + 5 + 419 + 4 + 9 + 7 + 216 = 666.

65419497216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821331 + ... + 897453.

Almost surely, 2^65419497216 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 65419497216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94564353884).

65419497216 is an abundant number, since it is smaller than the sum of its proper divisors (123709210552).

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

65419497216 is a wasteful number, since it uses less digits than its factorization.

65419497216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76518 (or 76501 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 65419497216 in words is "sixty-five billion, four hundred nineteen million, four hundred ninety-seven thousand, two hundred sixteen".