16215466446 has 12 divisors (see below), whose sum is σ = 35133510672. Its totient is φ = 5405155476.

The previous prime is 16215466427. The next prime is 16215466469. The reversal of 16215466446 is 64466451261.

16215466446 is a `hidden beast` number, since 1 + 6 + 2 + 1 + 546 + 64 + 46 = 666.

It is a super-2 number, since 2×16215466446² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 450429606 + ... + 450429641.

It is an arithmetic number, because the mean of its divisors is an integer number (2927792556).

Almost surely, 2^16215466446 is an apocalyptic number.

16215466446 is an abundant number, since it is smaller than the sum of its proper divisors (18918044226).

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

16215466446 is a wasteful number, since it uses less digits than its factorization.

16215466446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900859255 (or 900859252 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 16215466446 in words is "sixteen billion, two hundred fifteen million, four hundred sixty-six thousand, four hundred forty-six".