1616716667 has 8 divisors (see below), whose sum is σ = 1702488480. Its totient is φ = 1532234880.

The previous prime is 1616716601. The next prime is 1616716687. The reversal of 1616716667 is 7666176161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1616716667 - 2⁸ = 1616716411 is a prime.

It is a super-2 number, since 2×1616716667² = 5227545562711177778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1616716687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319934 + ... + 324947.

It is an arithmetic number, because the mean of its divisors is an integer number (212811060).

Almost surely, 2^1616716667 is an apocalyptic number.

1616716667 is a deficient number, since it is larger than the sum of its proper divisors (85771813).

1616716667 is a wasteful number, since it uses less digits than its factorization.

1616716667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645013.

The product of its digits is 381024, while the sum is 47.

The square root of 1616716667 is about 40208.4153753913. The cubic root of 1616716667 is about 1173.6663103923. Note that the first 3 decimals are identical.

The spelling of 1616716667 in words is "one billion, six hundred sixteen million, seven hundred sixteen thousand, six hundred sixty-seven".