446666889380 has 12 divisors (see below), whose sum is σ = 938000467740. Its totient is φ = 178666755744.

The previous prime is 446666889371. The next prime is 446666889391. The reversal of 446666889380 is 83988666644.

It can be written as a sum of positive squares in 2 ways, for example, as 114789505636 + 331877383744 = 338806^2 + 576088^2 .

It is a super-2 number, since 2×446666889380² (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 446666889380.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11166672215 + ... + 11166672254.

It is an arithmetic number, because the mean of its divisors is an integer number (78166705645).

Almost surely, 2^446666889380 is an apocalyptic number.

It is an amenable number.

446666889380 is an abundant number, since it is smaller than the sum of its proper divisors (491333578360).

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

446666889380 is a wasteful number, since it uses less digits than its factorization.

446666889380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333344478 (or 22333344476 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 68.

The spelling of 446666889380 in words is "four hundred forty-six billion, six hundred sixty-six million, eight hundred eighty-nine thousand, three hundred eighty".