6631434416 has 40 divisors (see below), whose sum is σ = 13534461120. Its totient is φ = 3138924096.

The previous prime is 6631434377. The next prime is 6631434419. The reversal of 6631434416 is 6144341366.

It is a happy number.

It is a super-2 number, since 2×6631434416² = 87951844827418522112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 6631434416.

It is not an unprimeable number, because it can be changed into a prime (6631434419) 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, 455831 + ... + 470153.

It is an arithmetic number, because the mean of its divisors is an integer number (338361528).

Almost surely, 2^6631434416 is an apocalyptic number.

It is an amenable number.

6631434416 is an abundant number, since it is smaller than the sum of its proper divisors (6903026704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6631434416 is a wasteful number, since it uses less digits than its factorization.

6631434416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873 (or 15867 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 6631434416 is about 81433.6196911325. The cubic root of 6631434416 is about 1878.7507182335.

The spelling of 6631434416 in words is "six billion, six hundred thirty-one million, four hundred thirty-four thousand, four hundred sixteen".