540306516566 has 4 divisors (see below), whose sum is σ = 810459774852. Its totient is φ = 270153258282.

The previous prime is 540306516553. The next prime is 540306516569. The reversal of 540306516566 is 665615603045.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×540306516566² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 540306516566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540306516569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135076629140 + ... + 135076629143.

It is an arithmetic number, because the mean of its divisors is an integer number (202614943713).

Almost surely, 2^540306516566 is an apocalyptic number.

540306516566 is a deficient number, since it is larger than the sum of its proper divisors (270153258286).

540306516566 is a wasteful number, since it uses less digits than its factorization.

540306516566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270153258285.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 540306516566 in words is "five hundred forty billion, three hundred six million, five hundred sixteen thousand, five hundred sixty-six".