1999616870411 has 2 divisors, whose sum is σ = 1999616870412. Its totient is φ = 1999616870410.

The previous prime is 1999616870399. The next prime is 1999616870423. The reversal of 1999616870411 is 1140786169991.

It is a balanced prime because it is at equal distance from previous prime (1999616870399) and next prime (1999616870423).

It is a cyclic number.

It is not a de Polignac number, because 1999616870411 - 2⁶ = 1999616870347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1999616878411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999808435205 + 999808435206.

It is an arithmetic number, because the mean of its divisors is an integer number (999808435206).

Almost surely, 2^{1999616870411} is an apocalyptic number.

1999616870411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1999616870411 is an equidigital number, since it uses as much as digits as its factorization.

1999616870411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 62.

The spelling of 1999616870411 in words is "one trillion, nine hundred ninety-nine billion, six hundred sixteen million, eight hundred seventy thousand, four hundred eleven".