1142236661405 has 8 divisors (see below), whose sum is σ = 1566495992832. Its totient is φ = 783247996368.

The previous prime is 1142236661347. The next prime is 1142236661417. The reversal of 1142236661405 is 5041666322411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142236661405 - 2¹⁶ = 1142236595869 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 16317666557 + ... + 16317666626.

It is an arithmetic number, because the mean of its divisors is an integer number (195811999104).

Almost surely, 2^{1142236661405} is an apocalyptic number.

It is an amenable number.

1142236661405 is a deficient number, since it is larger than the sum of its proper divisors (424259331427).

1142236661405 is an equidigital number, since it uses as much as digits as its factorization.

1142236661405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32635333195.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 1142236661405 in words is "one trillion, one hundred forty-two billion, two hundred thirty-six million, six hundred sixty-one thousand, four hundred five".