2116890157451 has 2 divisors, whose sum is σ = 2116890157452. Its totient is φ = 2116890157450.

The previous prime is 2116890157307. The next prime is 2116890157511. The reversal of 2116890157451 is 1547510986112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2116890157451 - 2³⁰ = 2115816415627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2116890157451.

It is not a weakly prime, because it can be changed into another prime (2116890157751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058445078725 + 1058445078726.

It is an arithmetic number, because the mean of its divisors is an integer number (1058445078726).

Almost surely, 2^{2116890157451} is an apocalyptic number.

2116890157451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116890157451 is an equidigital number, since it uses as much as digits as its factorization.

2116890157451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 50.

The spelling of 2116890157451 in words is "two trillion, one hundred sixteen billion, eight hundred ninety million, one hundred fifty-seven thousand, four hundred fifty-one".