16616312701 has 4 divisors (see below), whose sum is σ = 16616637792. Its totient is φ = 16615987612.

The previous prime is 16616312659. The next prime is 16616312707. The reversal of 16616312701 is 10721361661.

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 a de Polignac number, because none of the positive numbers 2^k-16616312701 is a prime.

It is a super-2 number, since 2×16616312701² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616312707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67255 + ... + 194308.

It is an arithmetic number, because the mean of its divisors is an integer number (4154159448).

Almost surely, 2^16616312701 is an apocalyptic number.

It is an amenable number.

16616312701 is a deficient number, since it is larger than the sum of its proper divisors (325091).

16616312701 is an equidigital number, since it uses as much as digits as its factorization.

16616312701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325090.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 16616312701 in words is "sixteen billion, six hundred sixteen million, three hundred twelve thousand, seven hundred one".