666462032 has 20 divisors (see below), whose sum is σ = 1297830996. Its totient is φ = 331537920.

The previous prime is 666462001. The next prime is 666462077. The reversal of 666462032 is 230264666.

It can be written as a sum of positive squares in 2 ways, for example, as 327754816 + 338707216 = 18104^2 + 18404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 666461983 and 666462001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102569 + ... + 108872.

Almost surely, 2^666462032 is an apocalyptic number.

It is an amenable number.

666462032 is a deficient number, since it is larger than the sum of its proper divisors (631368964).

666462032 is a wasteful number, since it uses less digits than its factorization.

666462032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211646 (or 211640 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 666462032 is about 25815.9259372969. The cubic root of 666462032 is about 873.4910731658.

The spelling of 666462032 in words is "six hundred sixty-six million, four hundred sixty-two thousand, thirty-two".