16770891723 has 8 divisors (see below), whose sum is σ = 22559076048. Its totient is φ = 11081650944.

The previous prime is 16770891713. The next prime is 16770891737. The reversal of 16770891723 is 32719807761.

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

It is not a de Polignac number, because 16770891723 - 2⁹ = 16770891211 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16770891703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24735490 + ... + 24736167.

It is an arithmetic number, because the mean of its divisors is an integer number (2819884506).

Almost surely, 2^16770891723 is an apocalyptic number.

16770891723 is a deficient number, since it is larger than the sum of its proper divisors (5788184325).

16770891723 is a wasteful number, since it uses less digits than its factorization.

16770891723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49471773.

The product of its (nonzero) digits is 889056, while the sum is 51.

The spelling of 16770891723 in words is "sixteen billion, seven hundred seventy million, eight hundred ninety-one thousand, seven hundred twenty-three".