6601403033601 has 4 divisors (see below), whose sum is σ = 8801870711472. Its totient is φ = 4400935355732.

The previous prime is 6601403033597. The next prime is 6601403033633. The reversal of 6601403033601 is 1063303041066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6601403033601 - 2² = 6601403033597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6601403033671) 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, 1100233838931 + ... + 1100233838936.

It is an arithmetic number, because the mean of its divisors is an integer number (2200467677868).

Almost surely, 2^{6601403033601} is an apocalyptic number.

It is an amenable number.

6601403033601 is a deficient number, since it is larger than the sum of its proper divisors (2200467677871).

6601403033601 is a wasteful number, since it uses less digits than its factorization.

6601403033601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200467677870.

The product of its (nonzero) digits is 23328, while the sum is 33.

Adding to 6601403033601 its reverse (1063303041066), we get a palindrome (7664706074667).

The spelling of 6601403033601 in words is "six trillion, six hundred one billion, four hundred three million, thirty-three thousand, six hundred one".