11657171207 has 8 divisors (see below), whose sum is σ = 12932455680. Its totient is φ = 10417810360.

The previous prime is 11657171203. The next prime is 11657171219. The reversal of 11657171207 is 70217175611.

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 11657171207 - 2² = 11657171203 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 (11657171203) 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, 8980223 + ... + 8981520.

It is an arithmetic number, because the mean of its divisors is an integer number (1616556960).

Almost surely, 2^11657171207 is an apocalyptic number.

11657171207 is a deficient number, since it is larger than the sum of its proper divisors (1275284473).

11657171207 is a wasteful number, since it uses less digits than its factorization.

11657171207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961813.

The product of its (nonzero) digits is 20580, while the sum is 38.

The spelling of 11657171207 in words is "eleven billion, six hundred fifty-seven million, one hundred seventy-one thousand, two hundred seven".