1167141421447 has 4 divisors (see below), whose sum is σ = 1191974217696. Its totient is φ = 1142308625200.

The previous prime is 1167141421421. The next prime is 1167141421493. The reversal of 1167141421447 is 7441241417611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1167141421447 - 2⁷ = 1167141421319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167141425447) 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, 12416398054 + ... + 12416398147.

It is an arithmetic number, because the mean of its divisors is an integer number (297993554424).

Almost surely, 2^{1167141421447} is an apocalyptic number.

1167141421447 is a deficient number, since it is larger than the sum of its proper divisors (24832796249).

1167141421447 is an equidigital number, since it uses as much as digits as its factorization.

1167141421447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24832796248.

The product of its digits is 150528, while the sum is 43.

The spelling of 1167141421447 in words is "one trillion, one hundred sixty-seven billion, one hundred forty-one million, four hundred twenty-one thousand, four hundred forty-seven".