16545655413431 has 2 divisors, whose sum is σ = 16545655413432. Its totient is φ = 16545655413430.

The previous prime is 16545655413407. The next prime is 16545655413571. The reversal of 16545655413431 is 13431455654561.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16545655413431 is a prime.

It is a super-2 number, since 2×16545655413431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16545655413631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272827706715 + 8272827706716.

It is an arithmetic number, because the mean of its divisors is an integer number (8272827706716).

Almost surely, 2^{16545655413431} is an apocalyptic number.

16545655413431 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545655413431 is an equidigital number, since it uses as much as digits as its factorization.

16545655413431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960000, while the sum is 53.

The spelling of 16545655413431 in words is "sixteen trillion, five hundred forty-five billion, six hundred fifty-five million, four hundred thirteen thousand, four hundred thirty-one".