11955589075 has 6 divisors (see below), whose sum is σ = 14824930484. Its totient is φ = 9564471240.

The previous prime is 11955589033. The next prime is 11955589081. The reversal of 11955589075 is 57098555911.

It is not a de Polignac number, because 11955589075 - 2¹³ = 11955580883 is a prime.

It is a super-2 number, since 2×11955589075² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239111757 + ... + 239111806.

Almost surely, 2^11955589075 is an apocalyptic number.

11955589075 is a deficient number, since it is larger than the sum of its proper divisors (2869341409).

11955589075 is an equidigital number, since it uses as much as digits as its factorization.

11955589075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478223573 (or 478223568 counting only the distinct ones).

The product of its (nonzero) digits is 2835000, while the sum is 55.

The spelling of 11955589075 in words is "eleven billion, nine hundred fifty-five million, five hundred eighty-nine thousand, seventy-five".