6406906650 has 24 divisors (see below), whose sum is σ = 15889128864. Its totient is φ = 1708508400.

The previous prime is 6406906607. The next prime is 6406906663. The reversal of 6406906650 is 566096046.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21356206 + ... + 21356505.

It is an arithmetic number, because the mean of its divisors is an integer number (662047036).

Almost surely, 2^6406906650 is an apocalyptic number.

6406906650 is an abundant number, since it is smaller than the sum of its proper divisors (9482222214).

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

6406906650 is a wasteful number, since it uses less digits than its factorization.

6406906650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42712726 (or 42712721 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 6406906650 is about 80043.1549228290. The cubic root of 6406906650 is about 1857.3031647897.

The spelling of 6406906650 in words is "six billion, four hundred six million, nine hundred six thousand, six hundred fifty".