16431293127663 has 24 divisors (see below), whose sum is σ = 24553394860800. Its totient is φ = 10576082067264.

The previous prime is 16431293127659. The next prime is 16431293127679. The reversal of 16431293127663 is 36672139213461.

16431293127663 is a `hidden beast` number, since 1 + 6 + 4 + 312 + 9 + 312 + 7 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 16431293127663 - 2² = 16431293127659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16431293127643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6182898 + ... + 8431536.

It is an arithmetic number, because the mean of its divisors is an integer number (1023058119200).

Almost surely, 2^{16431293127663} is an apocalyptic number.

16431293127663 is a deficient number, since it is larger than the sum of its proper divisors (8122101733137).

16431293127663 is a wasteful number, since it uses less digits than its factorization.

16431293127663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276671 (or 2276668 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 16431293127663 in words is "sixteen trillion, four hundred thirty-one billion, two hundred ninety-three million, one hundred twenty-seven thousand, six hundred sixty-three".