16544177494 has 8 divisors (see below), whose sum is σ = 26725209840. Its totient is φ = 7635774216.

The previous prime is 16544177483. The next prime is 16544177509. The reversal of 16544177494 is 49477144561.

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

It is a super-2 number, since 2×16544177494² (a number of 21 digits) contains 22 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, 318157234 + ... + 318157285.

It is an arithmetic number, because the mean of its divisors is an integer number (3340651230).

Almost surely, 2^16544177494 is an apocalyptic number.

16544177494 is a deficient number, since it is larger than the sum of its proper divisors (10181032346).

16544177494 is a wasteful number, since it uses less digits than its factorization.

16544177494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636314534.

The product of its digits is 3386880, while the sum is 52.

The spelling of 16544177494 in words is "sixteen billion, five hundred forty-four million, one hundred seventy-seven thousand, four hundred ninety-four".