16940001694 has 32 divisors (see below), whose sum is σ = 31941856512. Its totient is φ = 6599993400.

The previous prime is 16940001691. The next prime is 16940001697. The reversal of 16940001694 is 49610004961.

It is an interprime number because it is at equal distance from previous prime (16940001691) and next prime (16940001697).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940001691) 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, 435912 + ... + 473179.

It is an arithmetic number, because the mean of its divisors is an integer number (998183016).

Almost surely, 2^16940001694 is an apocalyptic number.

16940001694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16940001694 is a deficient number, since it is larger than the sum of its proper divisors (15001854818).

16940001694 is an equidigital number, since it uses as much as digits as its factorization.

16940001694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909133 (or 909111 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 16940001694 in words is "sixteen billion, nine hundred forty million, one thousand, six hundred ninety-four".