11658040000172 has 12 divisors (see below), whose sum is σ = 20747359322760. Its totient is φ = 5730223050816.

The previous prime is 11658040000169. The next prime is 11658040000177. The reversal of 11658040000172 is 27100004085611.

It is a super-2 number, since 2×11658040000172² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11658040000177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24699237053 + ... + 24699237524.

It is an arithmetic number, because the mean of its divisors is an integer number (1728946610230).

Almost surely, 2^{11658040000172} is an apocalyptic number.

It is an amenable number.

11658040000172 is a deficient number, since it is larger than the sum of its proper divisors (9089319322588).

11658040000172 is a wasteful number, since it uses less digits than its factorization.

11658040000172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49398474640 (or 49398474638 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

Adding to 11658040000172 its reverse (27100004085611), we get a palindrome (38758044085783).

The spelling of 11658040000172 in words is "eleven trillion, six hundred fifty-eight billion, forty million, one hundred seventy-two", and thus it is an aban number.