6355540666003 has 4 divisors (see below), whose sum is σ = 6359191179328. Its totient is φ = 6351890152680.

The previous prime is 6355540665973. The next prime is 6355540666043. The reversal of 6355540666003 is 3006660455536.

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

It is a cyclic number.

It is not a de Polignac number, because 6355540666003 - 2²¹ = 6355538568851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6355540666043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1825254051 + ... + 1825257532.

It is an arithmetic number, because the mean of its divisors is an integer number (1589797794832).

Almost surely, 2^{6355540666003} is an apocalyptic number.

6355540666003 is a deficient number, since it is larger than the sum of its proper divisors (3650513325).

6355540666003 is a wasteful number, since it uses less digits than its factorization.

6355540666003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650513324.

The product of its (nonzero) digits is 5832000, while the sum is 49.

The spelling of 6355540666003 in words is "six trillion, three hundred fifty-five billion, five hundred forty million, six hundred sixty-six thousand, three".