16607416321 has 4 divisors (see below), whose sum is σ = 16608980992. Its totient is φ = 16605851652.

The previous prime is 16607416313. The next prime is 16607416381. The reversal of 16607416321 is 12361470661.

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 16607416321 - 2³ = 16607416313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16607416381) 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, 766305 + ... + 787678.

It is an arithmetic number, because the mean of its divisors is an integer number (4152245248).

Almost surely, 2^16607416321 is an apocalyptic number.

It is an amenable number.

16607416321 is a deficient number, since it is larger than the sum of its proper divisors (1564671).

16607416321 is a wasteful number, since it uses less digits than its factorization.

16607416321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564670.

The product of its (nonzero) digits is 36288, while the sum is 37.

Adding to 16607416321 its reverse (12361470661), we get a palindrome (28968886982).

The spelling of 16607416321 in words is "sixteen billion, six hundred seven million, four hundred sixteen thousand, three hundred twenty-one".