11701172015 has 8 divisors (see below), whose sum is σ = 15121514688. Its totient is φ = 8640865440.

The previous prime is 11701172003. The next prime is 11701172017. The reversal of 11701172015 is 51027110711.

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

It is not a de Polignac number, because 11701172015 - 2¹⁰ = 11701170991 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 (11701172017) 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, 90008951 + ... + 90009080.

It is an arithmetic number, because the mean of its divisors is an integer number (1890189336).

Almost surely, 2^11701172015 is an apocalyptic number.

11701172015 is a deficient number, since it is larger than the sum of its proper divisors (3420342673).

11701172015 is a wasteful number, since it uses less digits than its factorization.

11701172015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180018049.

The product of its (nonzero) digits is 490, while the sum is 26.

Adding to 11701172015 its reverse (51027110711), we get a palindrome (62728282726).

The spelling of 11701172015 in words is "eleven billion, seven hundred one million, one hundred seventy-two thousand, fifteen".