16453144552 has 16 divisors (see below), whose sum is σ = 33222695940. Its totient is φ = 7593758976.

The previous prime is 16453144523. The next prime is 16453144579. The reversal of 16453144552 is 25544135461.

It can be written as a sum of positive squares in 2 ways, for example, as 16359944836 + 93199716 = 127906^2 + 9654^2 .

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, 79101553 + ... + 79101760.

Almost surely, 2^16453144552 is an apocalyptic number.

It is an amenable number.

16453144552 is an abundant number, since it is smaller than the sum of its proper divisors (16769551388).

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

16453144552 is a wasteful number, since it uses less digits than its factorization.

16453144552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158203332 (or 158203328 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

Subtracting 16453144552 from its reverse (25544135461), we obtain a palindrome (9090990909).

The spelling of 16453144552 in words is "sixteen billion, four hundred fifty-three million, one hundred forty-four thousand, five hundred fifty-two".