16457134545 has 12 divisors (see below), whose sum is σ = 28525699956. Its totient is φ = 8777138400.

The previous prime is 16457134481. The next prime is 16457134549. The reversal of 16457134545 is 54543175461.

It is a happy number.

16457134545 is a `hidden beast` number, since 1 + 6 + 4 + 5 + 71 + 34 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1817828496 + 14639306049 = 42636^2 + 120993^2 .

It is not a de Polignac number, because 16457134545 - 2⁶ = 16457134481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 365714101 = 16457134545 / (1 + 6 + 4 + 5 + 7 + 1 + 3 + 4 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 16457134545.

It is not an unprimeable number, because it can be changed into a prime (16457134549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182857006 + ... + 182857095.

It is an arithmetic number, because the mean of its divisors is an integer number (2377141663).

Almost surely, 2^16457134545 is an apocalyptic number.

16457134545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16457134545 is a deficient number, since it is larger than the sum of its proper divisors (12068565411).

16457134545 is a wasteful number, since it uses less digits than its factorization.

16457134545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365714112 (or 365714109 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 16457134545 in words is "sixteen billion, four hundred fifty-seven million, one hundred thirty-four thousand, five hundred forty-five".