475509161880 has 160 divisors (see below), whose sum is σ = 1625328579600. Its totient is φ = 124653199104.

The previous prime is 475509161833. The next prime is 475509161909. The reversal of 475509161880 is 88161905574.

It is a happy number.

475509161880 is a `hidden beast` number, since 4 + 7 + 550 + 9 + 1 + 6 + 1 + 8 + 80 = 666.

It is a super-2 number, since 2×475509161880² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1052587 + ... + 1434906.

Almost surely, 2^475509161880 is an apocalyptic number.

475509161880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

475509161880 is an abundant number, since it is smaller than the sum of its proper divisors (1149819417720).

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

475509161880 is a wasteful number, since it uses less digits than its factorization.

475509161880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487575 (or 2487562 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 475509161880 in words is "four hundred seventy-five billion, five hundred nine million, one hundred sixty-one thousand, eight hundred eighty".