11691630071 has 8 divisors (see below), whose sum is σ = 12758465424. Its totient is φ = 10625454720.

The previous prime is 11691629941. The next prime is 11691630073. The reversal of 11691630071 is 17003619611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11691630071 is a prime.

It is a super-2 number, since 2×11691630071² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11691630073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127586 + ... + 199151.

It is an arithmetic number, because the mean of its divisors is an integer number (1594808178).

Almost surely, 2^11691630071 is an apocalyptic number.

11691630071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11691630071 is a deficient number, since it is larger than the sum of its proper divisors (1066835353).

11691630071 is a wasteful number, since it uses less digits than its factorization.

11691630071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330001.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 11691630071 in words is "eleven billion, six hundred ninety-one million, six hundred thirty thousand, seventy-one".