22455255215666 has 32 divisors (see below), whose sum is σ = 41506227694848. Its totient is φ = 8872603686720.

The previous prime is 22455255215633. The next prime is 22455255215683. The reversal of 22455255215666 is 66651255255422.

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 15 ways as a sum of consecutive naturals, for example, 74808005 + ... + 75107576.

It is an arithmetic number, because the mean of its divisors is an integer number (1297069615464).

Almost surely, 2^{22455255215666} is an apocalyptic number.

22455255215666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22455255215666 is a deficient number, since it is larger than the sum of its proper divisors (19050972479182).

22455255215666 is a wasteful number, since it uses less digits than its factorization.

22455255215666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149916426.

The product of its digits is 43200000, while the sum is 56.

The spelling of 22455255215666 in words is "twenty-two trillion, four hundred fifty-five billion, two hundred fifty-five million, two hundred fifteen thousand, six hundred sixty-six".