12015542002 has 8 divisors (see below), whose sum is σ = 18023795676. Its totient is φ = 6007610112.

The previous prime is 12015541931. The next prime is 12015542017. The reversal of 12015542002 is 20024551021.

It can be written as a sum of positive squares in 2 ways, for example, as 11863784241 + 151757761 = 108921^2 + 12319^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 66838 + ... + 168814.

Almost surely, 2^12015542002 is an apocalyptic number.

12015542002 is a deficient number, since it is larger than the sum of its proper divisors (6008253674).

12015542002 is a wasteful number, since it uses less digits than its factorization.

12015542002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160892.

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 12015542002 in words is "twelve billion, fifteen million, five hundred forty-two thousand, two".