2116702161653 has 4 divisors (see below), whose sum is σ = 2119099333728. Its totient is φ = 2114304989580.

The previous prime is 2116702161643. The next prime is 2116702161697. The reversal of 2116702161653 is 3561612076112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2116702161653 - 2⁸ = 2116702161397 is a prime.

It is a super-2 number, since 2×2116702161653² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116702161653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116702161643) 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, 1198584713 + ... + 1198586478.

It is an arithmetic number, because the mean of its divisors is an integer number (529774833432).

Almost surely, 2^{2116702161653} is an apocalyptic number.

It is an amenable number.

2116702161653 is a deficient number, since it is larger than the sum of its proper divisors (2397172075).

2116702161653 is an equidigital number, since it uses as much as digits as its factorization.

2116702161653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397172074.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 2116702161653 in words is "two trillion, one hundred sixteen billion, seven hundred two million, one hundred sixty-one thousand, six hundred fifty-three".