2646021454416 has 100 divisors (see below), whose sum is σ = 8108845227252. Its totient is φ = 830124370944.

The previous prime is 2646021454381. The next prime is 2646021454441. The reversal of 2646021454416 is 6144541206462.

2646021454416 is a `hidden beast` number, since 2 + 6 + 4 + 60 + 2 + 145 + 441 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1190630145600 + 1455391308816 = 1091160^2 + 1206396^2 .

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 60027475 + ... + 60071538.

Almost surely, 2^{2646021454416} is an apocalyptic number.

It is an amenable number.

2646021454416 is an abundant number, since it is smaller than the sum of its proper divisors (5462823772836).

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

2646021454416 is a wasteful number, since it uses less digits than its factorization.

2646021454416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120099050 (or 120099035 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 2646021454416 in words is "two trillion, six hundred forty-six billion, twenty-one million, four hundred fifty-four thousand, four hundred sixteen".