16453203534 has 96 divisors (see below), whose sum is σ = 39631381920. Its totient is φ = 4909234176.

The previous prime is 16453203511. The next prime is 16453203541. The reversal of 16453203534 is 43530235461.

16453203534 is a `hidden beast` number, since 1 + 64 + 532 + 0 + 35 + 34 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580722 + ... + 608394.

It is an arithmetic number, because the mean of its divisors is an integer number (412826895).

Almost surely, 2^16453203534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16453203534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19815690960).

16453203534 is an abundant number, since it is smaller than the sum of its proper divisors (23178178386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16453203534 is a wasteful number, since it uses less digits than its factorization.

16453203534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27794 (or 27791 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 16453203534 its reverse (43530235461), we get a palindrome (59983438995).

The spelling of 16453203534 in words is "sixteen billion, four hundred fifty-three million, two hundred three thousand, five hundred thirty-four".