12005745515 has 8 divisors (see below), whose sum is σ = 14442824448. Its totient is φ = 9580643200.

The previous prime is 12005745473. The next prime is 12005745527. The reversal of 12005745515 is 51554750021.

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

It is not a de Polignac number, because 12005745515 - 2²⁰ = 12004696939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2991947 + ... + 2995956.

It is an arithmetic number, because the mean of its divisors is an integer number (1805353056).

Almost surely, 2^12005745515 is an apocalyptic number.

12005745515 is a deficient number, since it is larger than the sum of its proper divisors (2437078933).

12005745515 is an equidigital number, since it uses as much as digits as its factorization.

12005745515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988309.

The product of its (nonzero) digits is 35000, while the sum is 35.

The spelling of 12005745515 in words is "twelve billion, five million, seven hundred forty-five thousand, five hundred fifteen".