12564152020771 has 8 divisors (see below), whose sum is σ = 13562917920720. Its totient is φ = 11569999359072.

The previous prime is 12564152020747. The next prime is 12564152020831. The reversal of 12564152020771 is 17702025146521.

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 12564152020771 - 2¹⁷ = 12564151889699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12564152020271) 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, 1153303900 + ... + 1153314793.

It is an arithmetic number, because the mean of its divisors is an integer number (1695364740090).

Almost surely, 2^{12564152020771} is an apocalyptic number.

12564152020771 is a deficient number, since it is larger than the sum of its proper divisors (998765899949).

12564152020771 is a wasteful number, since it uses less digits than its factorization.

12564152020771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306619125.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 12564152020771 in words is "twelve trillion, five hundred sixty-four billion, one hundred fifty-two million, twenty thousand, seven hundred seventy-one".