140444264646 has 24 divisors (see below), whose sum is σ = 347766750864. Its totient is φ = 40126932720.

The previous prime is 140444264641. The next prime is 140444264659. The reversal of 140444264646 is 646462444041.

140444264646 is a `hidden beast` number, since 140 + 4 + 4 + 42 + 6 + 464 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140444264641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 557318385 + ... + 557318636.

It is an arithmetic number, because the mean of its divisors is an integer number (14490281286).

Almost surely, 2^140444264646 is an apocalyptic number.

140444264646 is an abundant number, since it is smaller than the sum of its proper divisors (207322486218).

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

140444264646 is a wasteful number, since it uses less digits than its factorization.

140444264646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114637036 (or 1114637033 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 45.

The spelling of 140444264646 in words is "one hundred forty billion, four hundred forty-four million, two hundred sixty-four thousand, six hundred forty-six".