216077653 has 4 divisors (see below), whose sum is σ = 235721088. Its totient is φ = 196434220.

The previous prime is 216077651. The next prime is 216077681. The reversal of 216077653 is 356770612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216077653 - 2¹ = 216077651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216077651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9821701 + ... + 9821722.

It is an arithmetic number, because the mean of its divisors is an integer number (58930272).

Almost surely, 2^216077653 is an apocalyptic number.

It is an amenable number.

216077653 is a deficient number, since it is larger than the sum of its proper divisors (19643435).

216077653 is a wasteful number, since it uses less digits than its factorization.

216077653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19643434.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 216077653 is about 14699.5800280144. The cubic root of 216077653 is about 600.0718923114.

The spelling of 216077653 in words is "two hundred sixteen million, seventy-seven thousand, six hundred fifty-three".