7211116613 has 8 divisors (see below), whose sum is σ = 7431238080. Its totient is φ = 6993101920.

The previous prime is 7211116541. The next prime is 7211116621. The reversal of 7211116613 is 3166111127.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7211116613 - 2²⁸ = 6942681157 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 (7211112613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519743 + ... + 533436.

It is an arithmetic number, because the mean of its divisors is an integer number (928904760).

Almost surely, 2^7211116613 is an apocalyptic number.

It is an amenable number.

7211116613 is a deficient number, since it is larger than the sum of its proper divisors (220121467).

7211116613 is a wasteful number, since it uses less digits than its factorization.

7211116613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053387.

The product of its digits is 1512, while the sum is 29.

The square root of 7211116613 is about 84918.2937475783. The cubic root of 7211116613 is about 1931.9720518749.

The spelling of 7211116613 in words is "seven billion, two hundred eleven million, one hundred sixteen thousand, six hundred thirteen".