1920108099169 has 8 divisors (see below), whose sum is σ = 2067821158760. Its totient is φ = 1772396816256.

The previous prime is 1920108099163. The next prime is 1920108099191. The reversal of 1920108099169 is 9619908010291.

It can be written as a sum of positive squares in 4 ways, for example, as 229881891600 + 1690226207569 = 479460^2 + 1300087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1920108099169 - 2¹⁹ = 1920107574881 is a prime.

It is a super-2 number, since 2×1920108099169² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1920108099163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546047 + ... + 3212875.

It is an arithmetic number, because the mean of its divisors is an integer number (258477644845).

Almost surely, 2^{1920108099169} is an apocalyptic number.

It is an amenable number.

1920108099169 is a deficient number, since it is larger than the sum of its proper divisors (147713059591).

1920108099169 is a wasteful number, since it uses less digits than its factorization.

1920108099169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888339.

The product of its (nonzero) digits is 629856, while the sum is 55.

The spelling of 1920108099169 in words is "one trillion, nine hundred twenty billion, one hundred eight million, ninety-nine thousand, one hundred sixty-nine".