1566001142 has 16 divisors (see below), whose sum is σ = 2360795712. Its totient is φ = 779077440.

The previous prime is 1566001103. The next prime is 1566001163. The reversal of 1566001142 is 2411006651.

It is a super-3 number, since 3×1566001142³ (a number of 29 digits) contains 333 as substring.

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, 558488 + ... + 561284.

It is an arithmetic number, because the mean of its divisors is an integer number (147549732).

Almost surely, 2^1566001142 is an apocalyptic number.

1566001142 is a deficient number, since it is larger than the sum of its proper divisors (794794570).

1566001142 is a wasteful number, since it uses less digits than its factorization.

1566001142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1566001142 is about 39572.7323039489. The cubic root of 1566001142 is about 1161.2632744706.

Adding to 1566001142 its reverse (2411006651), we get a palindrome (3977007793).

The spelling of 1566001142 in words is "one billion, five hundred sixty-six million, one thousand, one hundred forty-two".