140644122263 has 16 divisors (see below), whose sum is σ = 144433766400. Its totient is φ = 136878971040.

The previous prime is 140644122259. The next prime is 140644122323. The reversal of 140644122263 is 362221446041.

It is a cyclic number.

It is not a de Polignac number, because 140644122263 - 2² = 140644122259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140644122253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14598458 + ... + 14608088.

It is an arithmetic number, because the mean of its divisors is an integer number (9027110400).

Almost surely, 2^140644122263 is an apocalyptic number.

140644122263 is a deficient number, since it is larger than the sum of its proper divisors (3789644137).

140644122263 is an equidigital number, since it uses as much as digits as its factorization.

140644122263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10862.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 140644122263 in words is "one hundred forty billion, six hundred forty-four million, one hundred twenty-two thousand, two hundred sixty-three".