2216666225450 has 24 divisors (see below), whose sum is σ = 4133877840480. Its totient is φ = 884326993200.

The previous prime is 2216666225393. The next prime is 2216666225467. The reversal of 2216666225450 is 545226666122.

It is a junction number, because it is equal to n+sod(n) for n = 2216666225395 and 2216666225404.

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, 58468286 + ... + 58506185.

It is an arithmetic number, because the mean of its divisors is an integer number (172244910020).

Almost surely, 2^{2216666225450} is an apocalyptic number.

2216666225450 is a deficient number, since it is larger than the sum of its proper divisors (1917211615030).

2216666225450 is a wasteful number, since it uses less digits than its factorization.

2216666225450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116974862 (or 116974857 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 2216666225450 in words is "two trillion, two hundred sixteen billion, six hundred sixty-six million, two hundred twenty-five thousand, four hundred fifty".