216545702 has 4 divisors (see below), whose sum is σ = 324818556. Its totient is φ = 108272850.

The previous prime is 216545701. The next prime is 216545729. The reversal of 216545702 is 207545612.

216545702 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216545701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54136424 + ... + 54136427.

It is an arithmetic number, because the mean of its divisors is an integer number (81204639).

Almost surely, 2^216545702 is an apocalyptic number.

216545702 is a deficient number, since it is larger than the sum of its proper divisors (108272854).

216545702 is a wasteful number, since it uses less digits than its factorization.

216545702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108272853.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 216545702 is about 14715.4919047920. The cubic root of 216545702 is about 600.5048547133.

The spelling of 216545702 in words is "two hundred sixteen million, five hundred forty-five thousand, seven hundred two".