16006656452 has 6 divisors (see below), whose sum is σ = 28011648798. Its totient is φ = 8003328224.

The previous prime is 16006656437. The next prime is 16006656461. The reversal of 16006656452 is 25465660061.

It can be written as a sum of positive squares in only one way, i.e., 15273005056 + 733651396 = 123584^2 + 27086^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000832053 + ... + 2000832060.

It is an arithmetic number, because the mean of its divisors is an integer number (4668608133).

Almost surely, 2^16006656452 is an apocalyptic number.

It is an amenable number.

16006656452 is a deficient number, since it is larger than the sum of its proper divisors (12004992346).

16006656452 is a wasteful number, since it uses less digits than its factorization.

16006656452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001664117 (or 4001664115 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16006656452 in words is "sixteen billion, six million, six hundred fifty-six thousand, four hundred fifty-two".