1566061051 has 16 divisors (see below), whose sum is σ = 1621017216. Its totient is φ = 1512000000.

The previous prime is 1566061039. The next prime is 1566061061. The reversal of 1566061051 is 1501606651.

It is a cyclic number.

It is not a de Polignac number, because 1566061051 - 2⁵ = 1566061019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1566061031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2084926 + ... + 2085676.

It is an arithmetic number, because the mean of its divisors is an integer number (101313576).

Almost surely, 2^1566061051 is an apocalyptic number.

1566061051 is a deficient number, since it is larger than the sum of its proper divisors (54956165).

1566061051 is a wasteful number, since it uses less digits than its factorization.

1566061051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1566061051 is about 39573.4892446951. The cubic root of 1566061051 is about 1161.2780827259.

The spelling of 1566061051 in words is "one billion, five hundred sixty-six million, sixty-one thousand, fifty-one".