2021165201116 has 48 divisors (see below), whose sum is σ = 3603515610240. Its totient is φ = 991670400000.

The previous prime is 2021165201053. The next prime is 2021165201119. The reversal of 2021165201116 is 6111025611202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021165201119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205418925 + ... + 205428763.

It is an arithmetic number, because the mean of its divisors is an integer number (75073241880).

Almost surely, 2^{2021165201116} is an apocalyptic number.

It is an amenable number.

2021165201116 is a deficient number, since it is larger than the sum of its proper divisors (1582350409124).

2021165201116 is a wasteful number, since it uses less digits than its factorization.

2021165201116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806 (or 11804 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 2021165201116 in words is "two trillion, twenty-one billion, one hundred sixty-five million, two hundred one thousand, one hundred sixteen".