216045366404427 has 64 divisors (see below), whose sum is σ = 366934976517120. Its totient is φ = 123068730240000.

The previous prime is 216045366404419. The next prime is 216045366404501. The reversal of 216045366404427 is 724404663540612.

216045366404427 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 4 + 536 + 6 + 40 + 44 + 27 = 666.

It is not a de Polignac number, because 216045366404427 - 2³ = 216045366404419 is a prime.

It is a super-2 number, since 2×216045366404427² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216045366404027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158008027 + ... + 159369467.

It is an arithmetic number, because the mean of its divisors is an integer number (5733359008080).

Almost surely, 2^{216045366404427} is an apocalyptic number.

216045366404427 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

216045366404427 is a deficient number, since it is larger than the sum of its proper divisors (150889610112693).

216045366404427 is a wasteful number, since it uses less digits than its factorization.

216045366404427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364081 (or 1364075 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 54.

The spelling of 216045366404427 in words is "two hundred sixteen trillion, forty-five billion, three hundred sixty-six million, four hundred four thousand, four hundred twenty-seven".