16615477445 has 16 divisors (see below), whose sum is σ = 23008177920. Its totient is φ = 11282851584.

The previous prime is 16615477441. The next prime is 16615477469. The reversal of 16615477445 is 54477451661.

16615477445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16615477445 - 2² = 16615477441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16615477393 and 16615477402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16615477441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2300900 + ... + 2308109.

It is an arithmetic number, because the mean of its divisors is an integer number (1438011120).

Almost surely, 2^16615477445 is an apocalyptic number.

It is an amenable number.

16615477445 is a deficient number, since it is larger than the sum of its proper divisors (6392700475).

16615477445 is a wasteful number, since it uses less digits than its factorization.

16615477445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609124.

The product of its digits is 2822400, while the sum is 50.

The spelling of 16615477445 in words is "sixteen billion, six hundred fifteen million, four hundred seventy-seven thousand, four hundred forty-five".