16545057551607 has 16 divisors (see below), whose sum is σ = 24399086952800. Its totient is φ = 9906396204672.

The previous prime is 16545057551599. The next prime is 16545057551609. The reversal of 16545057551607 is 70615575054561.

It is a happy number.

It is not a de Polignac number, because 16545057551607 - 2³ = 16545057551599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545057551609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5732866732 + ... + 5732869617.

It is an arithmetic number, because the mean of its divisors is an integer number (1524942934550).

Almost surely, 2^{16545057551607} is an apocalyptic number.

16545057551607 is a deficient number, since it is larger than the sum of its proper divisors (7854029401193).

16545057551607 is a wasteful number, since it uses less digits than its factorization.

16545057551607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11465736402.

The product of its (nonzero) digits is 22050000, while the sum is 57.

The spelling of 16545057551607 in words is "sixteen trillion, five hundred forty-five billion, fifty-seven million, five hundred fifty-one thousand, six hundred seven".