1599118101949 has 2 divisors, whose sum is σ = 1599118101950. Its totient is φ = 1599118101948.

The previous prime is 1599118101929. The next prime is 1599118101979. The reversal of 1599118101949 is 9491018119951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304358147225 + 294759954724 = 1142085^2 + 542918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1599118101949 - 2¹⁵ = 1599118069181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1599118101893 and 1599118101902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1599118101929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799559050974 + 799559050975.

It is an arithmetic number, because the mean of its divisors is an integer number (799559050975).

Almost surely, 2^{1599118101949} is an apocalyptic number.

It is an amenable number.

1599118101949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1599118101949 is an equidigital number, since it uses as much as digits as its factorization.

1599118101949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 58.

The spelling of 1599118101949 in words is "one trillion, five hundred ninety-nine billion, one hundred eighteen million, one hundred one thousand, nine hundred forty-nine".