2100458895616 has 81 divisors (see below), whose sum is σ = 4221467364891. Its totient is φ = 1043075722752.

The previous prime is 2100458895569. The next prime is 2100458895649. The reversal of 2100458895616 is 6165988540012.

The square root of 2100458895616 is 1449296.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5542107715 + ... + 5542108093.

Almost surely, 2^{2100458895616} is an apocalyptic number.

2100458895616 is the 1449296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100458895616

2100458895616 is an abundant number, since it is smaller than the sum of its proper divisors (2121008469275).

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

2100458895616 is an frugal number, since it uses more digits than its factorization.

2100458895616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 2100458895616 in words is "two trillion, one hundred billion, four hundred fifty-eight million, eight hundred ninety-five thousand, six hundred sixteen".