6557067212001 has 4 divisors (see below), whose sum is σ = 8742756282672. Its totient is φ = 4371378141332.

The previous prime is 6557067211969. The next prime is 6557067212023. The reversal of 6557067212001 is 1002127607556.

It is a happy number.

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 6557067212001 - 2⁵ = 6557067211969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6557067212401) 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, 1092844535331 + ... + 1092844535336.

It is an arithmetic number, because the mean of its divisors is an integer number (2185689070668).

Almost surely, 2^{6557067212001} is an apocalyptic number.

It is an amenable number.

6557067212001 is a deficient number, since it is larger than the sum of its proper divisors (2185689070671).

6557067212001 is a wasteful number, since it uses less digits than its factorization.

6557067212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185689070670.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 6557067212001 in words is "six trillion, five hundred fifty-seven billion, sixty-seven million, two hundred twelve thousand, one".