12061606776 has 32 divisors (see below), whose sum is σ = 30159032400. Its totient is φ = 4019866880.

The previous prime is 12061606747. The next prime is 12061606783. The reversal of 12061606776 is 67760616021.

It is a super-2 number, since 2×12061606776² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 117970 + ... + 195038.

Almost surely, 2^12061606776 is an apocalyptic number.

It is an amenable number.

12061606776 is an abundant number, since it is smaller than the sum of its proper divisors (18097425624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12061606776 is a wasteful number, since it uses less digits than its factorization.

12061606776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83599 (or 83595 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 12061606776 in words is "twelve billion, sixty-one million, six hundred six thousand, seven hundred seventy-six".