11661937495 has 8 divisors (see below), whose sum is σ = 15070811616. Its totient is φ = 8611892256.

The previous prime is 11661937481. The next prime is 11661937519. The reversal of 11661937495 is 59473916611.

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 11661937495 - 2¹¹ = 11661935447 is a prime.

It is a super-2 number, since 2×11661937495² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 89707147 + ... + 89707276.

It is an arithmetic number, because the mean of its divisors is an integer number (1883851452).

Almost surely, 2^11661937495 is an apocalyptic number.

11661937495 is a deficient number, since it is larger than the sum of its proper divisors (3408874121).

11661937495 is a wasteful number, since it uses less digits than its factorization.

11661937495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179414441.

The product of its digits is 1224720, while the sum is 52.

The spelling of 11661937495 in words is "eleven billion, six hundred sixty-one million, nine hundred thirty-seven thousand, four hundred ninety-five".