16506054045 has 80 divisors (see below), whose sum is σ = 31920123312. Its totient is φ = 8111923200.

The previous prime is 16506054031. The next prime is 16506054077. The reversal of 16506054045 is 54045060561.

16506054045 is a `hidden beast` number, since 1 + 6 + 5 + 0 + 605 + 4 + 0 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2139155001 + 14366899044 = 46251^2 + 119862^2 .

It is not a de Polignac number, because 16506054045 - 2⁹ = 16506053533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3435645 + ... + 3440445.

Almost surely, 2^16506054045 is an apocalyptic number.

16506054045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16506054045 is a deficient number, since it is larger than the sum of its proper divisors (15414069267).

16506054045 is a wasteful number, since it uses less digits than its factorization.

16506054045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484 (or 5475 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 16506054045 in words is "sixteen billion, five hundred six million, fifty-four thousand, forty-five".