16217336077 has 4 divisors (see below), whose sum is σ = 16492206240. Its totient is φ = 15942465916.

The previous prime is 16217336059. The next prime is 16217336081. The reversal of 16217336077 is 77063371261.

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 16217336077 - 2¹⁵ = 16217303309 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 (16217336027) 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, 137434993 + ... + 137435110.

It is an arithmetic number, because the mean of its divisors is an integer number (4123051560).

Almost surely, 2^16217336077 is an apocalyptic number.

It is an amenable number.

16217336077 is a deficient number, since it is larger than the sum of its proper divisors (274870163).

16217336077 is an equidigital number, since it uses as much as digits as its factorization.

16217336077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274870162.

The product of its (nonzero) digits is 222264, while the sum is 43.

The spelling of 16217336077 in words is "sixteen billion, two hundred seventeen million, three hundred thirty-six thousand, seventy-seven".