216236140355655 has 96 divisors (see below), whose sum is σ = 428524353653760. Its totient is φ = 98811387924480.

The previous prime is 216236140355617. The next prime is 216236140355663. The reversal of 216236140355655 is 556553041632612.

216236140355655 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 3 + 6 + 1 + 40 + 35 + 565 + 5 = 666.

It is not a de Polignac number, because 216236140355655 - 2⁶ = 216236140355591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10331880231 + ... + 10331901159.

It is an arithmetic number, because the mean of its divisors is an integer number (4463795350560).

Almost surely, 2^{216236140355655} is an apocalyptic number.

216236140355655 is a deficient number, since it is larger than the sum of its proper divisors (212288213298105).

216236140355655 is a wasteful number, since it uses less digits than its factorization.

216236140355655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32461 (or 32458 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 54.

The spelling of 216236140355655 in words is "two hundred sixteen trillion, two hundred thirty-six billion, one hundred forty million, three hundred fifty-five thousand, six hundred fifty-five".