475117666540 has 48 divisors (see below), whose sum is σ = 1123562732544. Its totient is φ = 167196830400.

The previous prime is 475117666531. The next prime is 475117666553. The reversal of 475117666540 is 45666711574.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34825854 + ... + 34839493.

It is an arithmetic number, because the mean of its divisors is an integer number (23407556928).

Almost surely, 2^475117666540 is an apocalyptic number.

It is an amenable number.

475117666540 is an abundant number, since it is smaller than the sum of its proper divisors (648445066004).

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

475117666540 is a wasteful number, since it uses less digits than its factorization.

475117666540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69665398 (or 69665396 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 475117666540 in words is "four hundred seventy-five billion, one hundred seventeen million, six hundred sixty-six thousand, five hundred forty".