2154866293122 has 16 divisors (see below), whose sum is σ = 4313321054112. Its totient is φ = 717690686400.

The previous prime is 2154866293121. The next prime is 2154866293183. The reversal of 2154866293122 is 2213926684512.

It is not an unprimeable number, because it can be changed into a prime (2154866293121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149511688 + ... + 149526099.

It is an arithmetic number, because the mean of its divisors is an integer number (269582565882).

Almost surely, 2^{2154866293122} is an apocalyptic number.

2154866293122 is an abundant number, since it is smaller than the sum of its proper divisors (2158454760990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154866293122 is a wasteful number, since it uses less digits than its factorization.

2154866293122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299038993.

The product of its digits is 2488320, while the sum is 51.

The spelling of 2154866293122 in words is "two trillion, one hundred fifty-four billion, eight hundred sixty-six million, two hundred ninety-three thousand, one hundred twenty-two".