16507431223 has 8 divisors (see below), whose sum is σ = 17226631296. Its totient is φ = 15788355000.

The previous prime is 16507431217. The next prime is 16507431229. The reversal of 16507431223 is 32213470561.

It is an interprime number because it is at equal distance from previous prime (16507431217) and next prime (16507431229).

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

It is a cyclic number.

It is not a de Polignac number, because 16507431223 - 2⁹ = 16507430711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16507431229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332148 + ... + 378598.

It is an arithmetic number, because the mean of its divisors is an integer number (2153328912).

Almost surely, 2^16507431223 is an apocalyptic number.

16507431223 is a deficient number, since it is larger than the sum of its proper divisors (719200073).

16507431223 is a wasteful number, since it uses less digits than its factorization.

16507431223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61925.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 16507431223 in words is "sixteen billion, five hundred seven million, four hundred thirty-one thousand, two hundred twenty-three".