65426413650 has 192 divisors, whose sum is σ = 179855155200. Its totient is φ = 15635358720.

The previous prime is 65426413589. The next prime is 65426413693. The reversal of 65426413650 is 5631462456.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51153711 + ... + 51154989.

It is an arithmetic number, because the mean of its divisors is an integer number (936745600).

Almost surely, 2^65426413650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65426413650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89927577600).

65426413650 is an abundant number, since it is smaller than the sum of its proper divisors (114428741550).

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

65426413650 is a wasteful number, since it uses less digits than its factorization.

65426413650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 65426413650 in words is "sixty-five billion, four hundred twenty-six million, four hundred thirteen thousand, six hundred fifty".