442661331153 has 32 divisors (see below), whose sum is σ = 606713788800. Its totient is φ = 286909862400.

The previous prime is 442661331109. The next prime is 442661331163. The reversal of 442661331153 is 351133166244.

It is not a de Polignac number, because 442661331153 - 2⁶ = 442661331089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442661331163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52762683 + ... + 52771071.

It is an arithmetic number, because the mean of its divisors is an integer number (18959805900).

Almost surely, 2^442661331153 is an apocalyptic number.

It is an amenable number.

442661331153 is a deficient number, since it is larger than the sum of its proper divisors (164052457647).

442661331153 is a wasteful number, since it uses less digits than its factorization.

442661331153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its digits is 155520, while the sum is 39.

Adding to 442661331153 its reverse (351133166244), we get a palindrome (793794497397).

The spelling of 442661331153 in words is "four hundred forty-two billion, six hundred sixty-one million, three hundred thirty-one thousand, one hundred fifty-three".