12061661937 has 8 divisors (see below), whose sum is σ = 17319309504. Its totient is φ = 7422561168.

The previous prime is 12061661929. The next prime is 12061662013. The reversal of 12061661937 is 73916616021.

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

It is not a de Polignac number, because 12061661937 - 2³ = 12061661929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12061661917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154636653 + ... + 154636730.

It is an arithmetic number, because the mean of its divisors is an integer number (2164913688).

Almost surely, 2^12061661937 is an apocalyptic number.

It is an amenable number.

12061661937 is a deficient number, since it is larger than the sum of its proper divisors (5257647567).

12061661937 is a wasteful number, since it uses less digits than its factorization.

12061661937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309273399.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 12061661937 in words is "twelve billion, sixty-one million, six hundred sixty-one thousand, nine hundred thirty-seven".