520665463432 has 8 divisors (see below), whose sum is σ = 976247743950. Its totient is φ = 260332731712.

The previous prime is 520665463429. The next prime is 520665463489. The reversal of 520665463432 is 234364566025.

It can be written as a sum of positive squares in only one way, i.e., 459919974276 + 60745489156 = 678174^2 + 246466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32541591457 + ... + 32541591472.

Almost surely, 2^520665463432 is an apocalyptic number.

It is an amenable number.

520665463432 is a deficient number, since it is larger than the sum of its proper divisors (455582280518).

520665463432 is a wasteful number, since it uses less digits than its factorization.

520665463432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65083182935 (or 65083182931 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 520665463432 in words is "five hundred twenty billion, six hundred sixty-five million, four hundred sixty-three thousand, four hundred thirty-two".