11166565502 has 8 divisors (see below), whose sum is σ = 16766651496. Its totient is φ = 5577681672.

The previous prime is 11166565477. The next prime is 11166565517. The reversal of 11166565502 is 20556566111.

It is a happy number.

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

It is a super-2 number, since 2×11166565502² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2798048 + ... + 2802035.

It is an arithmetic number, because the mean of its divisors is an integer number (2095831437).

Almost surely, 2^11166565502 is an apocalyptic number.

11166565502 is a deficient number, since it is larger than the sum of its proper divisors (5600085994).

11166565502 is an equidigital number, since it uses as much as digits as its factorization.

11166565502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601082.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 11166565502 in words is "eleven billion, one hundred sixty-six million, five hundred sixty-five thousand, five hundred two".