2116890157441 has 4 divisors (see below), whose sum is σ = 2136674177712. Its totient is φ = 2097106137172.

The previous prime is 2116890157307. The next prime is 2116890157451. The reversal of 2116890157441 is 1447510986112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2116890157441 - 2⁹ = 2116890156929 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116890157451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9892009975 + ... + 9892010188.

It is an arithmetic number, because the mean of its divisors is an integer number (534168544428).

Almost surely, 2^{2116890157441} is an apocalyptic number.

It is an amenable number.

2116890157441 is a deficient number, since it is larger than the sum of its proper divisors (19784020271).

2116890157441 is a wasteful number, since it uses less digits than its factorization.

2116890157441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19784020270.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 2116890157441 in words is "two trillion, one hundred sixteen billion, eight hundred ninety million, one hundred fifty-seven thousand, four hundred forty-one".