2565643167372 has 48 divisors (see below), whose sum is σ = 6339101459040. Its totient is φ = 804850056192.

The previous prime is 2565643167337. The next prime is 2565643167377. The reversal of 2565643167372 is 2737613465652.

It is not an unprimeable number, because it can be changed into a prime (2565643167377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2453254 + ... + 3339122.

It is an arithmetic number, because the mean of its divisors is an integer number (132064613730).

Almost surely, 2^{2565643167372} is an apocalyptic number.

It is an amenable number.

2565643167372 is an abundant number, since it is smaller than the sum of its proper divisors (3773458291668).

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

2565643167372 is a wasteful number, since it uses less digits than its factorization.

2565643167372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900090 (or 900088 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 57.

The spelling of 2565643167372 in words is "two trillion, five hundred sixty-five billion, six hundred forty-three million, one hundred sixty-seven thousand, three hundred seventy-two".