40212550666 has 32 divisors (see below), whose sum is σ = 61751289600. Its totient is φ = 19635648000.

The previous prime is 40212550621. The next prime is 40212550673. The reversal of 40212550666 is 66605521204.

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 15 ways as a sum of consecutive naturals, for example, 6090435 + ... + 6097033.

It is an arithmetic number, because the mean of its divisors is an integer number (1929727800).

Almost surely, 2^40212550666 is an apocalyptic number.

40212550666 is a deficient number, since it is larger than the sum of its proper divisors (21538738934).

40212550666 is a wasteful number, since it uses less digits than its factorization.

40212550666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7110.

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

The spelling of 40212550666 in words is "forty billion, two hundred twelve million, five hundred fifty thousand, six hundred sixty-six".