16671722354 has 16 divisors (see below), whose sum is σ = 28581929088. Its totient is φ = 7144565472.

The previous prime is 16671722351. The next prime is 16671722371. The reversal of 16671722354 is 45322717661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16671722351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278147 + ... + 332729.

It is an arithmetic number, because the mean of its divisors is an integer number (1786370568).

Almost surely, 2^16671722354 is an apocalyptic number.

16671722354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16671722354 is a deficient number, since it is larger than the sum of its proper divisors (11910206734).

16671722354 is a wasteful number, since it uses less digits than its factorization.

16671722354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76409.

The product of its digits is 423360, while the sum is 44.

The spelling of 16671722354 in words is "sixteen billion, six hundred seventy-one million, seven hundred twenty-two thousand, three hundred fifty-four".