12061166007787 has 8 divisors (see below), whose sum is σ = 12989004589904. Its totient is φ = 11133335508768.

The previous prime is 12061166007769. The next prime is 12061166007791. The reversal of 12061166007787 is 78770066116021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12061166007787 - 2²³ = 12061157619179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12061166007707) 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, 1277728 + ... + 5074930.

It is an arithmetic number, because the mean of its divisors is an integer number (1623625573738).

Almost surely, 2^{12061166007787} is an apocalyptic number.

12061166007787 is a deficient number, since it is larger than the sum of its proper divisors (927838582117).

12061166007787 is a wasteful number, since it uses less digits than its factorization.

12061166007787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041549.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 12061166007787 in words is "twelve trillion, sixty-one billion, one hundred sixty-six million, seven thousand, seven hundred eighty-seven".