1566215352 has 80 divisors (see below), whose sum is σ = 4724328840. Its totient is φ = 481909824.

The previous prime is 1566215351. The next prime is 1566215363. The reversal of 1566215352 is 2535126651.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1566215351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84538 + ... + 101385.

Almost surely, 2^1566215352 is an apocalyptic number.

1566215352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1566215352 is an abundant number, since it is smaller than the sum of its proper divisors (3158113488).

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

1566215352 is a wasteful number, since it uses less digits than its factorization.

1566215352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185954 (or 185941 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 1566215352 is about 39575.4387467783. The cubic root of 1566215352 is about 1161.3162209762.

The spelling of 1566215352 in words is "one billion, five hundred sixty-six million, two hundred fifteen thousand, three hundred fifty-two".