111412451663 has 2 divisors, whose sum is σ = 111412451664. Its totient is φ = 111412451662.

The previous prime is 111412451603. The next prime is 111412451687. The reversal of 111412451663 is 366154214111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111412451663 is a prime.

It is a super-2 number, since 2×111412451663² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111412451603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55706225831 + 55706225832.

It is an arithmetic number, because the mean of its divisors is an integer number (55706225832).

Almost surely, 2^111412451663 is an apocalyptic number.

111412451663 is a deficient number, since it is larger than the sum of its proper divisors (1).

111412451663 is an equidigital number, since it uses as much as digits as its factorization.

111412451663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

Adding to 111412451663 its reverse (366154214111), we get a palindrome (477566665774).

The spelling of 111412451663 in words is "one hundred eleven billion, four hundred twelve million, four hundred fifty-one thousand, six hundred sixty-three".