4149664620 has 24 divisors (see below), whose sum is σ = 11619061104. Its totient is φ = 1106577216.

The previous prime is 4149664609. The next prime is 4149664667. The reversal of 4149664620 is 264669414.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34580479 + ... + 34580598.

It is an arithmetic number, because the mean of its divisors is an integer number (484127546).

Almost surely, 2^4149664620 is an apocalyptic number.

It is an amenable number.

4149664620 is an abundant number, since it is smaller than the sum of its proper divisors (7469396484).

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

4149664620 is a wasteful number, since it uses less digits than its factorization.

4149664620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69161089 (or 69161087 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 4149664620 is about 64417.8905273993. The cubic root of 4149664620 is about 1606.9572845006.

The spelling of 4149664620 in words is "four billion, one hundred forty-nine million, six hundred sixty-four thousand, six hundred twenty".