2154241664322 has 64 divisors (see below), whose sum is σ = 4708649207808. Its totient is φ = 651622752000.

The previous prime is 2154241664299. The next prime is 2154241664339. The reversal of 2154241664322 is 2234661424512.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130070922 + ... + 130087482.

It is an arithmetic number, because the mean of its divisors is an integer number (73572643872).

Almost surely, 2^{2154241664322} is an apocalyptic number.

2154241664322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2154241664322 is an abundant number, since it is smaller than the sum of its proper divisors (2554407543486).

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

2154241664322 is a wasteful number, since it uses less digits than its factorization.

2154241664322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20015.

The product of its digits is 552960, while the sum is 42.

The spelling of 2154241664322 in words is "two trillion, one hundred fifty-four billion, two hundred forty-one million, six hundred sixty-four thousand, three hundred twenty-two".