4551216631 has 8 divisors (see below), whose sum is σ = 4904662784. Its totient is φ = 4198249440.

The previous prime is 4551216613. The next prime is 4551216641. The reversal of 4551216631 is 1366121554.

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 4551216631 - 2⁷ = 4551216503 is a prime.

It is a super-2 number, since 2×4551216631² = 41427145644581980322, which 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 (4551216601) 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, 99876 + ... + 138121.

It is an arithmetic number, because the mean of its divisors is an integer number (613082848).

Almost surely, 2^4551216631 is an apocalyptic number.

4551216631 is a deficient number, since it is larger than the sum of its proper divisors (353446153).

4551216631 is a wasteful number, since it uses less digits than its factorization.

4551216631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239481.

The product of its digits is 21600, while the sum is 34.

The square root of 4551216631 is about 67462.7054823626. The cubic root of 4551216631 is about 1657.2034773536.

The spelling of 4551216631 in words is "four billion, five hundred fifty-one million, two hundred sixteen thousand, six hundred thirty-one".