1566227372 has 6 divisors (see below), whose sum is σ = 2740897908. Its totient is φ = 783113684.

The previous prime is 1566227371. The next prime is 1566227381. The reversal of 1566227372 is 2737226651.

It is not an unprimeable number, because it can be changed into a prime (1566227371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195778418 + ... + 195778425.

It is an arithmetic number, because the mean of its divisors is an integer number (456816318).

Almost surely, 2^1566227372 is an apocalyptic number.

It is an amenable number.

1566227372 is a deficient number, since it is larger than the sum of its proper divisors (1174670536).

1566227372 is a wasteful number, since it uses less digits than its factorization.

1566227372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391556847 (or 391556845 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 1566227372 is about 39575.5906083535. The cubic root of 1566227372 is about 1161.3191918289.

It can be divided in two parts, 15662 and 27372, that added together give a palindrome (43034).

The spelling of 1566227372 in words is "one billion, five hundred sixty-six million, two hundred twenty-seven thousand, three hundred seventy-two".