110665644642 has 24 divisors (see below), whose sum is σ = 274029215616. Its totient is φ = 31618755576.

The previous prime is 110665644637. The next prime is 110665644659. The reversal of 110665644642 is 246446566011.

110665644642 is a `hidden beast` number, since 1 + 1 + 0 + 6 + 6 + 564 + 46 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439149258 + ... + 439149509.

It is an arithmetic number, because the mean of its divisors is an integer number (11417883984).

Almost surely, 2^110665644642 is an apocalyptic number.

110665644642 is an abundant number, since it is smaller than the sum of its proper divisors (163363570974).

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

110665644642 is a wasteful number, since it uses less digits than its factorization.

110665644642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878298782 (or 878298779 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 110665644642 in words is "one hundred ten billion, six hundred sixty-five million, six hundred forty-four thousand, six hundred forty-two".