665452275460 has 48 divisors (see below), whose sum is σ = 1619579646720. Its totient is φ = 224941610880.

The previous prime is 665452275263. The next prime is 665452275463. The reversal of 665452275460 is 64572254566.

It is a junction number, because it is equal to n+sod(n) for n = 665452275398 and 665452275407.

It is not an unprimeable number, because it can be changed into a prime (665452275463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33463515 + ... + 33483394.

It is an arithmetic number, because the mean of its divisors is an integer number (33741242640).

Almost surely, 2^665452275460 is an apocalyptic number.

It is an amenable number.

665452275460 is an abundant number, since it is smaller than the sum of its proper divisors (954127371260).

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

665452275460 is a wasteful number, since it uses less digits than its factorization.

665452275460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66946996 (or 66946994 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 52.

The spelling of 665452275460 in words is "six hundred sixty-five billion, four hundred fifty-two million, two hundred seventy-five thousand, four hundred sixty".