2116455366240 has 72 divisors (see below), whose sum is σ = 7222403942208. Its totient is φ = 564388097280.

The previous prime is 2116455366217. The next prime is 2116455366257. The reversal of 2116455366240 is 426635546112.

2116455366240 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 45 + 5 + 366 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734878896 + ... + 734881775.

It is an arithmetic number, because the mean of its divisors is an integer number (100311165864).

Almost surely, 2^{2116455366240} is an apocalyptic number.

2116455366240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116455366240 is an abundant number, since it is smaller than the sum of its proper divisors (5105948575968).

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

2116455366240 is a wasteful number, since it uses less digits than its factorization.

2116455366240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469760692 (or 1469760681 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 2116455366240 in words is "two trillion, one hundred sixteen billion, four hundred fifty-five million, three hundred sixty-six thousand, two hundred forty".