2154032223520 has 48 divisors (see below), whose sum is σ = 5207247682560. Its totient is φ = 841575377664.

The previous prime is 2154032223487. The next prime is 2154032223521. The reversal of 2154032223520 is 253222304512.

It is not an unprimeable number, because it can be changed into a prime (2154032223521) 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, 156536160 + ... + 156549919.

It is an arithmetic number, because the mean of its divisors is an integer number (108484326720).

Almost surely, 2^{2154032223520} is an apocalyptic number.

2154032223520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154032223520 is an abundant number, since it is smaller than the sum of its proper divisors (3053215459040).

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

2154032223520 is a wasteful number, since it uses less digits than its factorization.

2154032223520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313086137 (or 313086129 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 2154032223520 in words is "two trillion, one hundred fifty-four billion, thirty-two million, two hundred twenty-three thousand, five hundred twenty".