475371663066 has 24 divisors (see below), whose sum is σ = 1084180986720. Its totient is φ = 150117367176.

The previous prime is 475371663031. The next prime is 475371663089. The reversal of 475371663066 is 660366173574.

It is a happy number.

475371663066 is a `hidden beast` number, since 4 + 7 + 537 + 16 + 6 + 30 + 66 = 666.

It is a super-2 number, since 2×475371663066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 694987470 + ... + 694988153.

It is an arithmetic number, because the mean of its divisors is an integer number (45174207780).

Almost surely, 2^475371663066 is an apocalyptic number.

475371663066 is an abundant number, since it is smaller than the sum of its proper divisors (608809323654).

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

475371663066 is a wasteful number, since it uses less digits than its factorization.

475371663066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389975650 (or 1389975647 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 475371663066 in words is "four hundred seventy-five billion, three hundred seventy-one million, six hundred sixty-three thousand, sixty-six".