1999552910901 has 48 divisors (see below), whose sum is σ = 3299628787200. Its totient is φ = 1054619092800.

The previous prime is 1999552910851. The next prime is 1999552910903. The reversal of 1999552910901 is 1090192559991.

It is not a de Polignac number, because 1999552910901 - 2⁹ = 1999552910389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999552910903) 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 47 ways as a sum of consecutive naturals, for example, 71146950 + ... + 71175048.

It is an arithmetic number, because the mean of its divisors is an integer number (68742266400).

Almost surely, 2^{1999552910901} is an apocalyptic number.

It is an amenable number.

1999552910901 is a deficient number, since it is larger than the sum of its proper divisors (1300075876299).

1999552910901 is a wasteful number, since it uses less digits than its factorization.

1999552910901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48186 (or 48173 counting only the distinct ones).

The product of its (nonzero) digits is 2952450, while the sum is 60.

The spelling of 1999552910901 in words is "one trillion, nine hundred ninety-nine billion, five hundred fifty-two million, nine hundred ten thousand, nine hundred one".