11651310166 has 4 divisors (see below), whose sum is σ = 17476965252. Its totient is φ = 5825655082.

The previous prime is 11651310161. The next prime is 11651310221. The reversal of 11651310166 is 66101315611.

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 (11651310161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2912827540 + ... + 2912827543.

It is an arithmetic number, because the mean of its divisors is an integer number (4369241313).

Almost surely, 2^11651310166 is an apocalyptic number.

11651310166 is a deficient number, since it is larger than the sum of its proper divisors (5825655086).

11651310166 is an equidigital number, since it uses as much as digits as its factorization.

11651310166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825655085.

The product of its (nonzero) digits is 3240, while the sum is 31.

Adding to 11651310166 its reverse (66101315611), we get a palindrome (77752625777).

Subtracting 11651310166 from its reverse (66101315611), we obtain a palindrome (54450005445).

The spelling of 11651310166 in words is "eleven billion, six hundred fifty-one million, three hundred ten thousand, one hundred sixty-six".