6645460622 has 4 divisors (see below), whose sum is σ = 9968190936. Its totient is φ = 3322730310.

The previous prime is 6645460609. The next prime is 6645460637. The reversal of 6645460622 is 2260645466.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6645460622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661365154 + ... + 1661365157.

It is an arithmetic number, because the mean of its divisors is an integer number (2492047734).

Almost surely, 2^6645460622 is an apocalyptic number.

6645460622 is a deficient number, since it is larger than the sum of its proper divisors (3322730314).

6645460622 is a wasteful number, since it uses less digits than its factorization.

6645460622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322730313.

The product of its (nonzero) digits is 414720, while the sum is 41.

The square root of 6645460622 is about 81519.6946878483. The cubic root of 6645460622 is about 1880.0743729066.

The spelling of 6645460622 in words is "six billion, six hundred forty-five million, four hundred sixty thousand, six hundred twenty-two".