216605464154365 has 32 divisors (see below), whose sum is σ = 305370062839296. Its totient is φ = 145412601269760.

The previous prime is 216605464154309. The next prime is 216605464154381. The reversal of 216605464154365 is 563451464506612.

216605464154365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216605464154365 - 2²⁷ = 216605329936637 is a prime.

It is a congruent number.

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, 134921164 + ... + 136517146.

It is an arithmetic number, because the mean of its divisors is an integer number (9542814463728).

Almost surely, 2^{216605464154365} is an apocalyptic number.

It is an amenable number.

216605464154365 is a deficient number, since it is larger than the sum of its proper divisors (88764598684931).

216605464154365 is a wasteful number, since it uses less digits than its factorization.

216605464154365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785829.

The product of its (nonzero) digits is 62208000, while the sum is 58.

The spelling of 216605464154365 in words is "two hundred sixteen trillion, six hundred five billion, four hundred sixty-four million, one hundred fifty-four thousand, three hundred sixty-five".