264781562416 has 80 divisors (see below), whose sum is σ = 606709382400. Its totient is φ = 109530457344.

The previous prime is 264781562401. The next prime is 264781562429. The reversal of 264781562416 is 614265187462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12133371 + ... + 12155173.

It is an arithmetic number, because the mean of its divisors is an integer number (7583867280).

Almost surely, 2^264781562416 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 264781562416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303354691200).

264781562416 is an abundant number, since it is smaller than the sum of its proper divisors (341927819984).

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

264781562416 is a wasteful number, since it uses less digits than its factorization.

264781562416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25586 (or 25580 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The spelling of 264781562416 in words is "two hundred sixty-four billion, seven hundred eighty-one million, five hundred sixty-two thousand, four hundred sixteen".