665962752 has 216 divisors, whose sum is σ = 2196433344. Its totient is φ = 175398912.

The previous prime is 665962733. The next prime is 665962753. The reversal of 665962752 is 257269566.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (665962753) 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, 908178 + ... + 908910.

Almost surely, 2^665962752 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 665962752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098216672).

665962752 is an abundant number, since it is smaller than the sum of its proper divisors (1530470592).

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

665962752 is a wasteful number, since it uses less digits than its factorization.

665962752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 758 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The square root of 665962752 is about 25806.2541256960. The cubic root of 665962752 is about 873.2728934081.

The spelling of 665962752 in words is "six hundred sixty-five million, nine hundred sixty-two thousand, seven hundred fifty-two".