2161143462154 has 24 divisors (see below), whose sum is σ = 3337321680000. Its totient is φ = 1049458398792.

The previous prime is 2161143462103. The next prime is 2161143462173. The reversal of 2161143462154 is 4512643411612.

It is a super-3 number, since 3×2161143462154³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1292154 + ... + 2447845.

It is an arithmetic number, because the mean of its divisors is an integer number (139055070000).

Almost surely, 2^{2161143462154} is an apocalyptic number.

2161143462154 is a deficient number, since it is larger than the sum of its proper divisors (1176178217846).

2161143462154 is an equidigital number, since it uses as much as digits as its factorization.

2161143462154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740202 (or 3740143 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

Adding to 2161143462154 its reverse (4512643411612), we get a palindrome (6673786873766).

The spelling of 2161143462154 in words is "two trillion, one hundred sixty-one billion, one hundred forty-three million, four hundred sixty-two thousand, one hundred fifty-four".