16643701675 has 24 divisors (see below), whose sum is σ = 22442822496. Its totient is φ = 12193021440.

The previous prime is 16643701661. The next prime is 16643701691. The reversal of 16643701675 is 57610734661.

It is not a de Polignac number, because 16643701675 - 2¹³ = 16643693483 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513487 + ... + 544936.

It is an arithmetic number, because the mean of its divisors is an integer number (935117604).

Almost surely, 2^16643701675 is an apocalyptic number.

16643701675 is a deficient number, since it is larger than the sum of its proper divisors (5799120821).

16643701675 is a wasteful number, since it uses less digits than its factorization.

16643701675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058487 (or 1058482 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 16643701675 in words is "sixteen billion, six hundred forty-three million, seven hundred one thousand, six hundred seventy-five".