16640366870 has 32 divisors (see below), whose sum is σ = 31723005888. Its totient is φ = 6262944768.

The previous prime is 16640366851. The next prime is 16640366881. The reversal of 16640366870 is 7866304661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765674 + ... + 787106.

It is an arithmetic number, because the mean of its divisors is an integer number (991343934).

Almost surely, 2^16640366870 is an apocalyptic number.

16640366870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16640366870 is a deficient number, since it is larger than the sum of its proper divisors (15082639018).

16640366870 is a wasteful number, since it uses less digits than its factorization.

16640366870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26024.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 16640366870 in words is "sixteen billion, six hundred forty million, three hundred sixty-six thousand, eight hundred seventy".