216045366404426 has 64 divisors (see below), whose sum is σ = 351249348602880. Its totient is φ = 99071404784640.

The previous prime is 216045366404419. The next prime is 216045366404501. The reversal of 216045366404426 is 624404663540612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12421388786 + ... + 12421406178.

It is an arithmetic number, because the mean of its divisors is an integer number (5488271071920).

Almost surely, 2^{216045366404426} is an apocalyptic number.

216045366404426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

216045366404426 is a deficient number, since it is larger than the sum of its proper divisors (135203982198454).

216045366404426 is a wasteful number, since it uses less digits than its factorization.

216045366404426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21711.

The product of its (nonzero) digits is 19906560, while the sum is 53.

The spelling of 216045366404426 in words is "two hundred sixteen trillion, forty-five billion, three hundred sixty-six million, four hundred four thousand, four hundred twenty-six".