540455665 has 8 divisors (see below), whose sum is σ = 682680960. Its totient is φ = 409608432.

The previous prime is 540455651. The next prime is 540455693. The reversal of 540455665 is 566554045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540455665 - 2¹⁷ = 540324593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2844409 + ... + 2844598.

It is an arithmetic number, because the mean of its divisors is an integer number (85335120).

Almost surely, 2^540455665 is an apocalyptic number.

It is an amenable number.

540455665 is a deficient number, since it is larger than the sum of its proper divisors (142225295).

540455665 is a wasteful number, since it uses less digits than its factorization.

540455665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689031.

The product of its (nonzero) digits is 360000, while the sum is 40.

The square root of 540455665 is about 23247.7023595881. The cubic root of 540455665 is about 814.5542696761.

The spelling of 540455665 in words is "five hundred forty million, four hundred fifty-five thousand, six hundred sixty-five".