2116401056898 has 16 divisors (see below), whose sum is σ = 4235566862496. Its totient is φ = 705006227520.

The previous prime is 2116401056863. The next prime is 2116401056899. The reversal of 2116401056898 is 8986501046112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116401056898.

It is not an unprimeable number, because it can be changed into a prime (2116401056899) 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, 115187911 + ... + 115206282.

It is an arithmetic number, because the mean of its divisors is an integer number (264722928906).

Almost surely, 2^{2116401056898} is an apocalyptic number.

2116401056898 is an abundant number, since it is smaller than the sum of its proper divisors (2119165805598).

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

2116401056898 is a wasteful number, since it uses less digits than its factorization.

2116401056898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230395729.

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 2116401056898 in words is "two trillion, one hundred sixteen billion, four hundred one million, fifty-six thousand, eight hundred ninety-eight".