12001554146 has 8 divisors (see below), whose sum is σ = 18785041344. Its totient is φ = 5739873700.

The previous prime is 12001554143. The next prime is 12001554151. The reversal of 12001554146 is 64145510021.

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

It is not an unprimeable number, because it can be changed into a prime (12001554143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130451630 + ... + 130451721.

It is an arithmetic number, because the mean of its divisors is an integer number (2348130168).

Almost surely, 2^12001554146 is an apocalyptic number.

12001554146 is a deficient number, since it is larger than the sum of its proper divisors (6783487198).

12001554146 is a wasteful number, since it uses less digits than its factorization.

12001554146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260903376.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 12001554146 in words is "twelve billion, one million, five hundred fifty-four thousand, one hundred forty-six".