16645140294 has 8 divisors (see below), whose sum is σ = 33290280600. Its totient is φ = 5548380096.

The previous prime is 16645140277. The next prime is 16645140349. The reversal of 16645140294 is 49204154661.

It is a sphenic number, since it is the product of 3 distinct primes.

16645140294 is an admirable number.

It is a super-3 number, since 3×16645140294³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387095019 + ... + 1387095030.

It is an arithmetic number, because the mean of its divisors is an integer number (4161285075).

Almost surely, 2^16645140294 is an apocalyptic number.

16645140294 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16645140294 is a wasteful number, since it uses less digits than its factorization.

16645140294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774190054.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 16645140294 in words is "sixteen billion, six hundred forty-five million, one hundred forty thousand, two hundred ninety-four".