16772265989 has 2 divisors, whose sum is σ = 16772265990. Its totient is φ = 16772265988.

The previous prime is 16772265949. The next prime is 16772266051. The reversal of 16772265989 is 98956227761.

It is an a-pointer prime, because the next prime (16772266051) can be obtained adding 16772265989 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9240976900 + 7531289089 = 96130^2 + 86783^2 .

It is a cyclic number.

It is not a de Polignac number, because 16772265989 - 2²⁰ = 16771217413 is a prime.

It is a super-2 number, since 2×16772265989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16772265949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8386132994 + 8386132995.

It is an arithmetic number, because the mean of its divisors is an integer number (8386132995).

Almost surely, 2^16772265989 is an apocalyptic number.

It is an amenable number.

16772265989 is a deficient number, since it is larger than the sum of its proper divisors (1).

16772265989 is an equidigital number, since it uses as much as digits as its factorization.

16772265989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 62.

The spelling of 16772265989 in words is "sixteen billion, seven hundred seventy-two million, two hundred sixty-five thousand, nine hundred eighty-nine".