216135620243435 has 8 divisors (see below), whose sum is σ = 259362967057056. Its totient is φ = 172908347684800.

The previous prime is 216135620243371. The next prime is 216135620243441. The reversal of 216135620243435 is 534342026531612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216135620243435 - 2⁶ = 216135620243371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216135620243435.

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, 11945666 + ... + 23978535.

It is an arithmetic number, because the mean of its divisors is an integer number (32420370882132).

Almost surely, 2^{216135620243435} is an apocalyptic number.

216135620243435 is a deficient number, since it is larger than the sum of its proper divisors (43227346813621).

216135620243435 is a wasteful number, since it uses less digits than its factorization.

216135620243435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37127493.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 216135620243435 in words is "two hundred sixteen trillion, one hundred thirty-five billion, six hundred twenty million, two hundred forty-three thousand, four hundred thirty-five".