445366531642066 has 16 divisors (see below), whose sum is σ = 674331814458720. Its totient is φ = 220589498186560.

The previous prime is 445366531642057. The next prime is 445366531642111. The reversal of 445366531642066 is 660246135663544.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 445366531641995 and 445366531642013.

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, 55756240 + ... + 63241531.

It is an arithmetic number, because the mean of its divisors is an integer number (42145738403670).

Almost surely, 2^{445366531642066} is an apocalyptic number.

445366531642066 is a deficient number, since it is larger than the sum of its proper divisors (228965282816654).

445366531642066 is a wasteful number, since it uses less digits than its factorization.

445366531642066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119015369.

The product of its (nonzero) digits is 223948800, while the sum is 61.

The spelling of 445366531642066 in words is "four hundred forty-five trillion, three hundred sixty-six billion, five hundred thirty-one million, six hundred forty-two thousand, sixty-six".