2251535222666 has 16 divisors (see below), whose sum is σ = 3380288623488. Its totient is φ = 1124772792000.

The previous prime is 2251535222617. The next prime is 2251535222683. The reversal of 2251535222666 is 6662225351522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251535222666.

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 in 7 ways as a sum of consecutive naturals, for example, 10249826 + ... + 10467186.

It is an arithmetic number, because the mean of its divisors is an integer number (211268038968).

Almost surely, 2^{2251535222666} is an apocalyptic number.

2251535222666 is a deficient number, since it is larger than the sum of its proper divisors (1128753400822).

2251535222666 is a wasteful number, since it uses less digits than its factorization.

2251535222666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221917.

The product of its digits is 2592000, while the sum is 47.

The spelling of 2251535222666 in words is "two trillion, two hundred fifty-one billion, five hundred thirty-five million, two hundred twenty-two thousand, six hundred sixty-six".