1566651364 has 12 divisors (see below), whose sum is σ = 2741934384. Its totient is φ = 783241544.

The previous prime is 1566651343. The next prime is 1566651391. The reversal of 1566651364 is 4631566651.

It is a self number, because there is not a number n which added to its sum of digits gives 1566651364.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41547 + ... + 69709.

It is an arithmetic number, because the mean of its divisors is an integer number (228494532).

Almost surely, 2^1566651364 is an apocalyptic number.

It is an amenable number.

1566651364 is a deficient number, since it is larger than the sum of its proper divisors (1175283020).

1566651364 is a wasteful number, since it uses less digits than its factorization.

1566651364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42074 (or 42072 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The square root of 1566651364 is about 39580.9469821024. The cubic root of 1566651364 is about 1161.4239755980.

The spelling of 1566651364 in words is "one billion, five hundred sixty-six million, six hundred fifty-one thousand, three hundred sixty-four".