16454561506 has 8 divisors (see below), whose sum is σ = 24845298624. Its totient is φ = 8172795300.

The previous prime is 16454561483. The next prime is 16454561573. The reversal of 16454561506 is 60516545461.

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

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, 27242350 + ... + 27242953.

It is an arithmetic number, because the mean of its divisors is an integer number (3105662328).

Almost surely, 2^16454561506 is an apocalyptic number.

16454561506 is a deficient number, since it is larger than the sum of its proper divisors (8390737118).

16454561506 is a wasteful number, since it uses less digits than its factorization.

16454561506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54485456.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 16454561506 in words is "sixteen billion, four hundred fifty-four million, five hundred sixty-one thousand, five hundred six".