475665326401 has 16 divisors (see below), whose sum is σ = 507937227840. Its totient is φ = 444142923840.

The previous prime is 475665326359. The next prime is 475665326413. The reversal of 475665326401 is 104623566574.

It is not a de Polignac number, because 475665326401 - 2¹¹ = 475665324353 is a prime.

It is a super-2 number, since 2×475665326401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475665326471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305691 + ... + 1022143.

It is an arithmetic number, because the mean of its divisors is an integer number (31746076740).

Almost surely, 2^475665326401 is an apocalyptic number.

It is an amenable number.

475665326401 is a deficient number, since it is larger than the sum of its proper divisors (32271901439).

475665326401 is a wasteful number, since it uses less digits than its factorization.

475665326401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716976.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 475665326401 in words is "four hundred seventy-five billion, six hundred sixty-five million, three hundred twenty-six thousand, four hundred one".