1641213355366 has 32 divisors (see below), whose sum is σ = 2669743540800. Its totient is φ = 752185202304.

The previous prime is 1641213355351. The next prime is 1641213355399. The reversal of 1641213355366 is 6635533121461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13977036 + ... + 14093968.

It is an arithmetic number, because the mean of its divisors is an integer number (83429485650).

Almost surely, 2^{1641213355366} is an apocalyptic number.

1641213355366 is a deficient number, since it is larger than the sum of its proper divisors (1028530185434).

1641213355366 is a wasteful number, since it uses less digits than its factorization.

1641213355366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120720.

The product of its digits is 1166400, while the sum is 46.

The spelling of 1641213355366 in words is "one trillion, six hundred forty-one billion, two hundred thirteen million, three hundred fifty-five thousand, three hundred sixty-six".