6600400290507 has 4 divisors (see below), whose sum is σ = 8800533720680. Its totient is φ = 4400266860336.

The previous prime is 6600400290481. The next prime is 6600400290521. The reversal of 6600400290507 is 7050920040066.

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

It is a de Polignac number, because none of the positive numbers 2^k-6600400290507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6600400290577) by changing a digit.

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, 1100066715082 + ... + 1100066715087.

It is an arithmetic number, because the mean of its divisors is an integer number (2200133430170).

Almost surely, 2^{6600400290507} is an apocalyptic number.

6600400290507 is a deficient number, since it is larger than the sum of its proper divisors (2200133430173).

6600400290507 is a wasteful number, since it uses less digits than its factorization.

6600400290507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200133430172.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 6600400290507 in words is "six trillion, six hundred billion, four hundred million, two hundred ninety thousand, five hundred seven".