662261264 has 120 divisors (see below), whose sum is σ = 1640341440. Its totient is φ = 257064192.

The previous prime is 662261251. The next prime is 662261267. The reversal of 662261264 is 462162266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662261267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341642 + ... + 343574.

It is an arithmetic number, because the mean of its divisors is an integer number (13669512).

Almost surely, 2^662261264 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 662261264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820170720).

662261264 is an abundant number, since it is smaller than the sum of its proper divisors (978080176).

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

662261264 is a wasteful number, since it uses less digits than its factorization.

662261264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1984 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 662261264 is about 25734.4373165609. The cubic root of 662261264 is about 871.6519737336.

The spelling of 662261264 in words is "six hundred sixty-two million, two hundred sixty-one thousand, two hundred sixty-four".