641475161446 has 16 divisors (see below), whose sum is σ = 1103424858144. Its totient is φ = 273979638144.

The previous prime is 641475161423. The next prime is 641475161479. The reversal of 641475161446 is 644161574146.

It is a super-2 number, since 2×641475161446² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641475161446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78186435 + ... + 78194638.

It is an arithmetic number, because the mean of its divisors is an integer number (68964053634).

Almost surely, 2^641475161446 is an apocalyptic number.

641475161446 is a deficient number, since it is larger than the sum of its proper divisors (461949696698).

641475161446 is a wasteful number, since it uses less digits than its factorization.

641475161446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156381375.

The product of its digits is 1935360, while the sum is 49.

The spelling of 641475161446 in words is "six hundred forty-one billion, four hundred seventy-five million, one hundred sixty-one thousand, four hundred forty-six".