16506444464 has 10 divisors (see below), whose sum is σ = 31981236180. Its totient is φ = 8253222224.

The previous prime is 16506444463. The next prime is 16506444469. The reversal of 16506444464 is 46444460561.

It is not an unprimeable number, because it can be changed into a prime (16506444463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515826374 + ... + 515826405.

It is an arithmetic number, because the mean of its divisors is an integer number (3198123618).

Almost surely, 2^16506444464 is an apocalyptic number.

It is an amenable number.

16506444464 is a deficient number, since it is larger than the sum of its proper divisors (15474791716).

16506444464 is a wasteful number, since it uses less digits than its factorization.

16506444464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031652787 (or 1031652781 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 44.

The spelling of 16506444464 in words is "sixteen billion, five hundred six million, four hundred forty-four thousand, four hundred sixty-four".