216711610701 has 4 divisors (see below), whose sum is σ = 288948814272. Its totient is φ = 144474407132.

The previous prime is 216711610607. The next prime is 216711610721. The reversal of 216711610701 is 107016117612.

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 216711610701 - 2⁷ = 216711610573 is a prime.

It is a super-2 number, since 2×216711610701² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216711610721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36118601781 + ... + 36118601786.

It is an arithmetic number, because the mean of its divisors is an integer number (72237203568).

Almost surely, 2^216711610701 is an apocalyptic number.

It is an amenable number.

216711610701 is a deficient number, since it is larger than the sum of its proper divisors (72237203571).

216711610701 is an equidigital number, since it uses as much as digits as its factorization.

216711610701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72237203570.

The product of its (nonzero) digits is 3528, while the sum is 33.

The spelling of 216711610701 in words is "two hundred sixteen billion, seven hundred eleven million, six hundred ten thousand, seven hundred one".