2081993516 has 12 divisors (see below), whose sum is σ = 3644615520. Its totient is φ = 1040674800.

The previous prime is 2081993513. The next prime is 2081993527. The reversal of 2081993516 is 6153991802.

It is a happy number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2081993513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65636 + ... + 92043.

It is an arithmetic number, because the mean of its divisors is an integer number (303717960).

Almost surely, 2^2081993516 is an apocalyptic number.

It is an amenable number.

2081993516 is a deficient number, since it is larger than the sum of its proper divisors (1562622004).

2081993516 is a wasteful number, since it uses less digits than its factorization.

2081993516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160984 (or 160982 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 2081993516 is about 45628.8671347427. The cubic root of 2081993516 is about 1276.9085380329.

The spelling of 2081993516 in words is "two billion, eighty-one million, nine hundred ninety-three thousand, five hundred sixteen".