2082240646666 has 4 divisors (see below), whose sum is σ = 3123360970002. Its totient is φ = 1041120323332.

The previous prime is 2082240646649. The next prime is 2082240646711. The reversal of 2082240646666 is 6666460422802.

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., 1113069310441 + 969171336225 = 1055021^2 + 984465^2 .

It is a super-2 number, since 2×2082240646666² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520560161665 + ... + 520560161668.

Almost surely, 2^{2082240646666} is an apocalyptic number.

2082240646666 is a deficient number, since it is larger than the sum of its proper divisors (1041120323336).

2082240646666 is a wasteful number, since it uses less digits than its factorization.

2082240646666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041120323335.

The product of its (nonzero) digits is 7962624, while the sum is 52.

The spelling of 2082240646666 in words is "two trillion, eighty-two billion, two hundred forty million, six hundred forty-six thousand, six hundred sixty-six".