16773762545 has 16 divisors (see below), whose sum is σ = 20942994960. Its totient is φ = 12881374464.

The previous prime is 16773762497. The next prime is 16773762547. The reversal of 16773762545 is 54526737761.

It can be written as a sum of positive squares in 8 ways, for example, as 2076807184 + 14696955361 = 45572^2 + 121231^2 .

It is a cyclic number.

It is not a de Polignac number, because 16773762545 - 2¹⁶ = 16773697009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16773762547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309254 + ... + 359423.

It is an arithmetic number, because the mean of its divisors is an integer number (1308937185).

Almost surely, 2^16773762545 is an apocalyptic number.

It is an amenable number.

16773762545 is a deficient number, since it is larger than the sum of its proper divisors (4169232415).

16773762545 is a wasteful number, since it uses less digits than its factorization.

16773762545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668884.

The product of its digits is 7408800, while the sum is 53.

The spelling of 16773762545 in words is "sixteen billion, seven hundred seventy-three million, seven hundred sixty-two thousand, five hundred forty-five".