1566431130 has 64 divisors (see below), whose sum is σ = 4104971136. Its totient is φ = 379392000.

The previous prime is 1566431129. The next prime is 1566431137. The reversal of 1566431130 is 311346651.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1566431137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685590 + ... + 687870.

It is an arithmetic number, because the mean of its divisors is an integer number (64140174).

Almost surely, 2^1566431130 is an apocalyptic number.

1566431130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1566431130 is an abundant number, since it is smaller than the sum of its proper divisors (2538540006).

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

1566431130 is a wasteful number, since it uses less digits than its factorization.

1566431130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1566431130 is about 39578.1648134423. The cubic root of 1566431130 is about 1161.3695501654.

Adding to 1566431130 its reverse (311346651), we get a palindrome (1877777781).

The spelling of 1566431130 in words is "one billion, five hundred sixty-six million, four hundred thirty-one thousand, one hundred thirty".