216521072770622 has 16 divisors (see below), whose sum is σ = 325258788314880. Its totient is φ = 108101478282072.

The previous prime is 216521072770517. The next prime is 216521072770703. The reversal of 216521072770622 is 226077270125612.

It is a congruent number.

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, 459509579 + ... + 459980537.

It is an arithmetic number, because the mean of its divisors is an integer number (20328674269680).

Almost surely, 2^{216521072770622} is an apocalyptic number.

216521072770622 is a deficient number, since it is larger than the sum of its proper divisors (108737715544258).

216521072770622 is a wasteful number, since it uses less digits than its factorization.

216521072770622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808207.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 216521072770622 in words is "two hundred sixteen trillion, five hundred twenty-one billion, seventy-two million, seven hundred seventy thousand, six hundred twenty-two".