445666204704 has 192 divisors, whose sum is σ = 1380730724352. Its totient is φ = 123171840000.

The previous prime is 445666204681. The next prime is 445666204721. The reversal of 445666204704 is 407402666544.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83346159 + ... + 83351505.

It is an arithmetic number, because the mean of its divisors is an integer number (7191305856).

Almost surely, 2^445666204704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445666204704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690365362176).

445666204704 is an abundant number, since it is smaller than the sum of its proper divisors (935064519648).

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

445666204704 is a wasteful number, since it uses less digits than its factorization.

445666204704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9399 (or 9391 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 48.

It can be divided in two parts, 445666 and 204704, that added together give a triangular number (650370 = T₁₁₄₀).

The spelling of 445666204704 in words is "four hundred forty-five billion, six hundred sixty-six million, two hundred four thousand, seven hundred four".