2154201103500 has 96 divisors (see below), whose sum is σ = 6309294683328. Its totient is φ = 571133017600.

The previous prime is 2154201103469. The next prime is 2154201103553. The reversal of 2154201103500 is 53011024512.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3891177 + ... + 4410176.

It is an arithmetic number, because the mean of its divisors is an integer number (65721819618).

Almost surely, 2^{2154201103500} is an apocalyptic number.

2154201103500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154201103500 is an abundant number, since it is smaller than the sum of its proper divisors (4155093579828).

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

2154201103500 is a wasteful number, since it uses less digits than its factorization.

2154201103500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8301548 (or 8301536 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 2154201103500 in words is "two trillion, one hundred fifty-four billion, two hundred one million, one hundred three thousand, five hundred".