6630361651 has 4 divisors (see below), whose sum is σ = 6784556152. Its totient is φ = 6476167152.

The previous prime is 6630361643. The next prime is 6630361663. The reversal of 6630361651 is 1561630366.

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 6630361651 - 2³ = 6630361643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6630361651.

It is not an unprimeable number, because it can be changed into a prime (6630361601) 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, 77097186 + ... + 77097271.

It is an arithmetic number, because the mean of its divisors is an integer number (1696139038).

Almost surely, 2^6630361651 is an apocalyptic number.

6630361651 is a deficient number, since it is larger than the sum of its proper divisors (154194501).

6630361651 is a wasteful number, since it uses less digits than its factorization.

6630361651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154194500.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 6630361651 is about 81427.0326795715. The cubic root of 6630361651 is about 1878.6494044716.

The spelling of 6630361651 in words is "six billion, six hundred thirty million, three hundred sixty-one thousand, six hundred fifty-one".