2161462056143 has 8 divisors (see below), whose sum is σ = 2327988197808. Its totient is φ = 1994973033024.

The previous prime is 2161462056109. The next prime is 2161462056269. The reversal of 2161462056143 is 3416502641612.

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 2161462056143 - 2⁶ = 2161462056079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2161462056143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161462056343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9158630 + ... + 9391667.

It is an arithmetic number, because the mean of its divisors is an integer number (290998524726).

Almost surely, 2^{2161462056143} is an apocalyptic number.

2161462056143 is a deficient number, since it is larger than the sum of its proper divisors (166526141665).

2161462056143 is a wasteful number, since it uses less digits than its factorization.

2161462056143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559273.

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

Adding to 2161462056143 its reverse (3416502641612), we get a palindrome (5577964697755).

The spelling of 2161462056143 in words is "two trillion, one hundred sixty-one billion, four hundred sixty-two million, fifty-six thousand, one hundred forty-three".