16066607775 has 24 divisors (see below), whose sum is σ = 28126016784. Its totient is φ = 8064806400.

The previous prime is 16066607771. The next prime is 16066607813. The reversal of 16066607775 is 57770666061.

It is not a de Polignac number, because 16066607775 - 2² = 16066607771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066607771) 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 23 ways as a sum of consecutive naturals, for example, 6299356 + ... + 6301905.

It is an arithmetic number, because the mean of its divisors is an integer number (1171917366).

Almost surely, 2^16066607775 is an apocalyptic number.

16066607775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16066607775 is a deficient number, since it is larger than the sum of its proper divisors (12059409009).

16066607775 is a wasteful number, since it uses less digits than its factorization.

16066607775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12601291 (or 12601286 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 16066607775 in words is "sixteen billion, sixty-six million, six hundred seven thousand, seven hundred seventy-five".