6540497371204 has 12 divisors (see below), whose sum is σ = 11712053432464. Its totient is φ = 3194196390504.

The previous prime is 6540497371153. The next prime is 6540497371217. The reversal of 6540497371204 is 4021737940456.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19013073582 + ... + 19013073925.

Almost surely, 2^{6540497371204} is an apocalyptic number.

It is an amenable number.

6540497371204 is a deficient number, since it is larger than the sum of its proper divisors (5171556061260).

6540497371204 is a wasteful number, since it uses less digits than its factorization.

6540497371204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38026147554 (or 38026147552 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 6540497371204 in words is "six trillion, five hundred forty billion, four hundred ninety-seven million, three hundred seventy-one thousand, two hundred four".