14031563666426 has 4 divisors (see below), whose sum is σ = 21047345499642. Its totient is φ = 7015781833212.

The previous prime is 14031563666423. The next prime is 14031563666447. The reversal of 14031563666426 is 62466636513041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11847673782025 + 2183889884401 = 3442045^2 + 1477799^2 .

It is a super-2 number, since 2×14031563666426² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14031563666423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3507890916605 + ... + 3507890916608.

Almost surely, 2^{14031563666426} is an apocalyptic number.

14031563666426 is a deficient number, since it is larger than the sum of its proper divisors (7015781833216).

14031563666426 is an equidigital number, since it uses as much as digits as its factorization.

14031563666426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015781833215.

The product of its (nonzero) digits is 11197440, while the sum is 53.

The spelling of 14031563666426 in words is "fourteen trillion, thirty-one billion, five hundred sixty-three million, six hundred sixty-six thousand, four hundred twenty-six".