2147265031556 has 24 divisors (see below), whose sum is σ = 3796976287104. Its totient is φ = 1062444781440.

The previous prime is 2147265031553. The next prime is 2147265031567. The reversal of 2147265031556 is 6551305627412.

It is a super-2 number, since 2×2147265031556² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2147265031556.

It is not an unprimeable number, because it can be changed into a prime (2147265031553) 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 7 ways as a sum of consecutive naturals, for example, 3479120 + ... + 4049543.

It is an arithmetic number, because the mean of its divisors is an integer number (158207345296).

Almost surely, 2^{2147265031556} is an apocalyptic number.

It is an amenable number.

2147265031556 is a deficient number, since it is larger than the sum of its proper divisors (1649711255548).

2147265031556 is a wasteful number, since it uses less digits than its factorization.

2147265031556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7529411 (or 7529409 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 2147265031556 in words is "two trillion, one hundred forty-seven billion, two hundred sixty-five million, thirty-one thousand, five hundred fifty-six".