6612406631 has 4 divisors (see below), whose sum is σ = 6612886272. Its totient is φ = 6611926992.

The previous prime is 6612406627. The next prime is 6612406637. The reversal of 6612406631 is 1366042166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6612406631 - 2² = 6612406627 is a prime.

It is a super-2 number, since 2×6612406631² = 87447842907385540322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6612406591 and 6612406600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6612406637) 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, 218510 + ... + 246923.

It is an arithmetic number, because the mean of its divisors is an integer number (1653221568).

Almost surely, 2^6612406631 is an apocalyptic number.

6612406631 is a deficient number, since it is larger than the sum of its proper divisors (479641).

6612406631 is a wasteful number, since it uses less digits than its factorization.

6612406631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479640.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 6612406631 is about 81316.7057313563. The cubic root of 6612406631 is about 1876.9520771704.

Adding to 6612406631 its reverse (1366042166), we get a palindrome (7978448797).

The spelling of 6612406631 in words is "six billion, six hundred twelve million, four hundred six thousand, six hundred thirty-one".