442664732160 has 1280 divisors, whose sum is σ = 1874908569600. Its totient is φ = 96889208832.

The previous prime is 442664732137. The next prime is 442664732177. The reversal of 442664732160 is 61237466244.

442664732160 is a `hidden beast` number, since 4 + 4 + 266 + 4 + 7 + 321 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1414264164 + ... + 1414264476.

It is an arithmetic number, because the mean of its divisors is an integer number (1464772320).

Almost surely, 2^442664732160 is an apocalyptic number.

442664732160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442664732160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937454284800).

442664732160 is an abundant number, since it is smaller than the sum of its proper divisors (1432243837440).

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

442664732160 is a wasteful number, since it uses less digits than its factorization.

442664732160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 442664732160 in words is "four hundred forty-two billion, six hundred sixty-four million, seven hundred thirty-two thousand, one hundred sixty".