1566660052 has 24 divisors (see below), whose sum is σ = 2769794720. Its totient is φ = 775306080.

The previous prime is 1566660023. The next prime is 1566660097. The reversal of 1566660052 is 2500666651.

It is a junction number, because it is equal to n+sod(n) for n = 1566659993 and 1566660020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666343 + ... + 668689.

Almost surely, 2^1566660052 is an apocalyptic number.

It is an amenable number.

1566660052 is a deficient number, since it is larger than the sum of its proper divisors (1203134668).

1566660052 is a wasteful number, since it uses less digits than its factorization.

1566660052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991 (or 3989 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1566660052 is about 39581.0567317246. The cubic root of 1566660052 is about 1161.4261225196.

The spelling of 1566660052 in words is "one billion, five hundred sixty-six million, six hundred sixty thousand, fifty-two".