16066606815 has 144 divisors (see below), whose sum is σ = 34447252320. Its totient is φ = 6887462400.

The previous prime is 16066606807. The next prime is 16066606841. The reversal of 16066606815 is 51860666061.

It is not a de Polignac number, because 16066606815 - 2³ = 16066606807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4229497 + ... + 4233293.

It is an arithmetic number, because the mean of its divisors is an integer number (239217030).

Almost surely, 2^16066606815 is an apocalyptic number.

16066606815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16066606815 is an abundant number, since it is smaller than the sum of its proper divisors (18380645505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16066606815 is a wasteful number, since it uses less digits than its factorization.

16066606815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 16066606815 in words is "sixteen billion, sixty-six million, six hundred six thousand, eight hundred fifteen".