444511222666 has 16 divisors (see below), whose sum is σ = 772751905920. Its totient is φ = 187821642960.

The previous prime is 444511222613. The next prime is 444511222681. The reversal of 444511222666 is 666222115444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223596201 + ... + 223598188.

It is an arithmetic number, because the mean of its divisors is an integer number (48296994120).

Almost surely, 2^444511222666 is an apocalyptic number.

444511222666 is a deficient number, since it is larger than the sum of its proper divisors (328240683254).

444511222666 is a wasteful number, since it uses less digits than its factorization.

444511222666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447194469.

The product of its digits is 552960, while the sum is 43.

The spelling of 444511222666 in words is "four hundred forty-four billion, five hundred eleven million, two hundred twenty-two thousand, six hundred sixty-six".