650669439630 has 32 divisors (see below), whose sum is σ = 1784693320704. Its totient is φ = 148724443296.

The previous prime is 650669439593. The next prime is 650669439631. The reversal of 650669439630 is 36934966056.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650669439631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1549212742 + ... + 1549213161.

It is an arithmetic number, because the mean of its divisors is an integer number (55771666272).

Almost surely, 2^650669439630 is an apocalyptic number.

650669439630 is an abundant number, since it is smaller than the sum of its proper divisors (1134023881074).

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

650669439630 is a wasteful number, since it uses less digits than its factorization.

650669439630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098425920.

The product of its (nonzero) digits is 18895680, while the sum is 57.

The spelling of 650669439630 in words is "six hundred fifty billion, six hundred sixty-nine million, four hundred thirty-nine thousand, six hundred thirty".