540510205732666 has 16 divisors (see below), whose sum is σ = 881291981745504. Its totient is φ = 247134788529264.

The previous prime is 540510205732633. The next prime is 540510205732793. The reversal of 540510205732666 is 666237502015045.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97144175100 + ... + 97144180663.

It is an arithmetic number, because the mean of its divisors is an integer number (55080748859094).

Almost surely, 2^{540510205732666} is an apocalyptic number.

540510205732666 is a deficient number, since it is larger than the sum of its proper divisors (340781776012838).

540510205732666 is a wasteful number, since it uses less digits than its factorization.

540510205732666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194288355885.

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 540510205732666 in words is "five hundred forty trillion, five hundred ten billion, two hundred five million, seven hundred thirty-two thousand, six hundred sixty-six".