16202766081 has 4 divisors (see below), whose sum is σ = 21603688112. Its totient is φ = 10801844052.

The previous prime is 16202766053. The next prime is 16202766091. The reversal of 16202766081 is 18066720261.

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 not a de Polignac number, because 16202766081 - 2⁵ = 16202766049 is a prime.

It is a super-2 number, since 2×16202766081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16202766091) 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, 2700461011 + ... + 2700461016.

It is an arithmetic number, because the mean of its divisors is an integer number (5400922028).

Almost surely, 2^16202766081 is an apocalyptic number.

It is an amenable number.

16202766081 is a deficient number, since it is larger than the sum of its proper divisors (5400922031).

16202766081 is an equidigital number, since it uses as much as digits as its factorization.

16202766081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400922030.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 16202766081 in words is "sixteen billion, two hundred two million, seven hundred sixty-six thousand, eighty-one".