16352766497 has 4 divisors (see below), whose sum is σ = 17314693956. Its totient is φ = 15390839040.

The previous prime is 16352766473. The next prime is 16352766509. The reversal of 16352766497 is 79466725361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14071653376 + 2281113121 = 118624^2 + 47761^2 .

It is a cyclic number.

It is not a de Polignac number, because 16352766497 - 2⁶ = 16352766433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16352766407) 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, 480963704 + ... + 480963737.

It is an arithmetic number, because the mean of its divisors is an integer number (4328673489).

Almost surely, 2^16352766497 is an apocalyptic number.

16352766497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16352766497 is a deficient number, since it is larger than the sum of its proper divisors (961927459).

16352766497 is an equidigital number, since it uses as much as digits as its factorization.

16352766497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961927458.

The product of its digits is 11430720, while the sum is 56.

The spelling of 16352766497 in words is "sixteen billion, three hundred fifty-two million, seven hundred sixty-six thousand, four hundred ninety-seven".