16432640016545 has 32 divisors (see below), whose sum is σ = 20634790252032. Its totient is φ = 12538944456192.

The previous prime is 16432640016473. The next prime is 16432640016581. The reversal of 16432640016545 is 54561004623461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16432640016545 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16432640016545.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329108372 + ... + 329158298.

It is an arithmetic number, because the mean of its divisors is an integer number (644837195376).

Almost surely, 2^{16432640016545} is an apocalyptic number.

It is an amenable number.

16432640016545 is a deficient number, since it is larger than the sum of its proper divisors (4202150235487).

16432640016545 is a wasteful number, since it uses less digits than its factorization.

16432640016545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58001.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 16432640016545 in words is "sixteen trillion, four hundred thirty-two billion, six hundred forty million, sixteen thousand, five hundred forty-five".