1142236661406 has 32 divisors (see below), whose sum is σ = 2340474393600. Its totient is φ = 371414281920.

The previous prime is 1142236661347. The next prime is 1142236661417. The reversal of 1142236661406 is 6041666322411.

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, 1795315 + ... + 2346833.

It is an arithmetic number, because the mean of its divisors is an integer number (73139824800).

Almost surely, 2^{1142236661406} is an apocalyptic number.

1142236661406 is an abundant number, since it is smaller than the sum of its proper divisors (1198237732194).

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

1142236661406 is a wasteful number, since it uses less digits than its factorization.

1142236661406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559984.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 1142236661406 in words is "one trillion, one hundred forty-two billion, two hundred thirty-six million, six hundred sixty-one thousand, four hundred six".