16649317370 has 64 divisors (see below), whose sum is σ = 36340462080. Its totient is φ = 5361334272.

The previous prime is 16649317367. The next prime is 16649317409. The reversal of 16649317370 is 7371394661.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 565166 + ... + 593894.

It is an arithmetic number, because the mean of its divisors is an integer number (567819720).

Almost surely, 2^16649317370 is an apocalyptic number.

16649317370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16649317370 is an abundant number, since it is smaller than the sum of its proper divisors (19691144710).

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

16649317370 is a wasteful number, since it uses less digits than its factorization.

16649317370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29247.

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 16649317370 in words is "sixteen billion, six hundred forty-nine million, three hundred seventeen thousand, three hundred seventy".