16453476638 has 8 divisors (see below), whose sum is σ = 24682477440. Its totient is φ = 8225984160.

The previous prime is 16453476631. The next prime is 16453476659. The reversal of 16453476638 is 83667435461.

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 16453476638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16453476631) 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, 349403 + ... + 393686.

It is an arithmetic number, because the mean of its divisors is an integer number (3085309680).

Almost surely, 2^16453476638 is an apocalyptic number.

16453476638 is a deficient number, since it is larger than the sum of its proper divisors (8229000802).

16453476638 is a wasteful number, since it uses less digits than its factorization.

16453476638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754162.

The product of its digits is 8709120, while the sum is 53.

The spelling of 16453476638 in words is "sixteen billion, four hundred fifty-three million, four hundred seventy-six thousand, six hundred thirty-eight".