2650450021066 has 4 divisors (see below), whose sum is σ = 3975675031602. Its totient is φ = 1325225010532.

The previous prime is 2650450021049. The next prime is 2650450021111. The reversal of 2650450021066 is 6601200540562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1433477003841 + 1216973017225 = 1197279^2 + 1103165^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 662612505265 + ... + 662612505268.

Almost surely, 2^{2650450021066} is an apocalyptic number.

2650450021066 is a deficient number, since it is larger than the sum of its proper divisors (1325225010536).

2650450021066 is a wasteful number, since it uses less digits than its factorization.

2650450021066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325225010535.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 2650450021066 in words is "two trillion, six hundred fifty billion, four hundred fifty million, twenty-one thousand, sixty-six".