16530223154 has 8 divisors (see below), whose sum is σ = 24795910188. Its totient is φ = 8264919760.

The previous prime is 16530223153. The next prime is 16530223163. The reversal of 16530223154 is 45132203561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15110063929 + 1420159225 = 122923^2 + 37685^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 16530223154.

It is not an unprimeable number, because it can be changed into a prime (16530223153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67484 + ... + 193944.

Almost surely, 2^16530223154 is an apocalyptic number.

16530223154 is a deficient number, since it is larger than the sum of its proper divisors (8265687034).

16530223154 is a wasteful number, since it uses less digits than its factorization.

16530223154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191820.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 16530223154 in words is "sixteen billion, five hundred thirty million, two hundred twenty-three thousand, one hundred fifty-four".