11651071606 has 4 divisors (see below), whose sum is σ = 17476607412. Its totient is φ = 5825535802.

The previous prime is 11651071577. The next prime is 11651071609. The reversal of 11651071606 is 60617015611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60617015611 = 13093 ⋅4629727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651071609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2912767900 + ... + 2912767903.

It is an arithmetic number, because the mean of its divisors is an integer number (4369151853).

Almost surely, 2^11651071606 is an apocalyptic number.

11651071606 is a deficient number, since it is larger than the sum of its proper divisors (5825535806).

11651071606 is an equidigital number, since it uses as much as digits as its factorization.

11651071606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825535805.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 11651071606 in words is "eleven billion, six hundred fifty-one million, seventy-one thousand, six hundred six".