6401042634066 has 16 divisors (see below), whose sum is σ = 13043634047424. Its totient is φ = 2093422748144.

The previous prime is 6401042633893. The next prime is 6401042634097. The reversal of 6401042634066 is 6604362401046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10064532126 + ... + 10064532761.

It is an arithmetic number, because the mean of its divisors is an integer number (815227127964).

Almost surely, 2^{6401042634066} is an apocalyptic number.

6401042634066 is an abundant number, since it is smaller than the sum of its proper divisors (6642591413358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6401042634066 is a wasteful number, since it uses less digits than its factorization.

6401042634066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129064945.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 6401042634066 in words is "six trillion, four hundred one billion, forty-two million, six hundred thirty-four thousand, sixty-six".