2146143223546 has 16 divisors (see below), whose sum is σ = 3797783400960. Its totient is φ = 890105484240.

The previous prime is 2146143223541. The next prime is 2146143223573. The reversal of 2146143223546 is 6453223416412.

It is a super-2 number, since 2×2146143223546² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2146143223541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2472514801 + ... + 2472515668.

It is an arithmetic number, because the mean of its divisors is an integer number (237361462560).

Almost surely, 2^{2146143223546} is an apocalyptic number.

2146143223546 is a deficient number, since it is larger than the sum of its proper divisors (1651640177414).

2146143223546 is a wasteful number, since it uses less digits than its factorization.

2146143223546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945030509.

The product of its digits is 829440, while the sum is 43.

Adding to 2146143223546 its reverse (6453223416412), we get a palindrome (8599366639958).

The spelling of 2146143223546 in words is "two trillion, one hundred forty-six billion, one hundred forty-three million, two hundred twenty-three thousand, five hundred forty-six".