1625871227366 has 4 divisors (see below), whose sum is σ = 2438806841052. Its totient is φ = 812935613682.

The previous prime is 1625871227363. The next prime is 1625871227381. The reversal of 1625871227366 is 6637221785261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625871227363) 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 as a sum of consecutive naturals, namely, 406467806840 + ... + 406467806843.

It is an arithmetic number, because the mean of its divisors is an integer number (609701710263).

Almost surely, 2^{1625871227366} is an apocalyptic number.

1625871227366 is a deficient number, since it is larger than the sum of its proper divisors (812935613686).

1625871227366 is an equidigital number, since it uses as much as digits as its factorization.

1625871227366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812935613685.

The product of its digits is 10160640, while the sum is 56.

The spelling of 1625871227366 in words is "one trillion, six hundred twenty-five billion, eight hundred seventy-one million, two hundred twenty-seven thousand, three hundred sixty-six".