16706657701 has 4 divisors (see below), whose sum is σ = 16859929900. Its totient is φ = 16553385504.

The previous prime is 16706657659. The next prime is 16706657713. The reversal of 16706657701 is 10775660761.

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 10222221025 + 6484436676 = 101105^2 + 80526^2 .

It is a cyclic number.

It is not a de Polignac number, because 16706657701 - 2¹⁵ = 16706624933 is a prime.

It is a super-2 number, since 2×16706657701² (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 (16706657731) 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, 76635936 + ... + 76636153.

It is an arithmetic number, because the mean of its divisors is an integer number (4214982475).

Almost surely, 2^16706657701 is an apocalyptic number.

It is an amenable number.

16706657701 is a deficient number, since it is larger than the sum of its proper divisors (153272199).

16706657701 is a wasteful number, since it uses less digits than its factorization.

16706657701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153272198.

The product of its (nonzero) digits is 370440, while the sum is 46.

The spelling of 16706657701 in words is "sixteen billion, seven hundred six million, six hundred fifty-seven thousand, seven hundred one".