16332464077 has 4 divisors (see below), whose sum is σ = 17293197276. Its totient is φ = 15371730880.

The previous prime is 16332464069. The next prime is 16332464089. The reversal of 16332464077 is 77046423361.

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 12265341001 + 4067123076 = 110749^2 + 63774^2 .

It is a cyclic number.

It is not a de Polignac number, because 16332464077 - 2³ = 16332464069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16332464177) 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, 480366574 + ... + 480366607.

It is an arithmetic number, because the mean of its divisors is an integer number (4323299319).

Almost surely, 2^16332464077 is an apocalyptic number.

16332464077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16332464077 is a deficient number, since it is larger than the sum of its proper divisors (960733199).

16332464077 is an equidigital number, since it uses as much as digits as its factorization.

16332464077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960733198.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 16332464077 in words is "sixteen billion, three hundred thirty-two million, four hundred sixty-four thousand, seventy-seven".