1566836051 has 4 divisors (see below), whose sum is σ = 1709275704. Its totient is φ = 1424396400.

The previous prime is 1566836027. The next prime is 1566836081. The reversal of 1566836051 is 1506386651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1566836051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1566836081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71219810 + ... + 71219831.

It is an arithmetic number, because the mean of its divisors is an integer number (427318926).

Almost surely, 2^1566836051 is an apocalyptic number.

1566836051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1566836051 is a deficient number, since it is larger than the sum of its proper divisors (142439653).

1566836051 is a wasteful number, since it uses less digits than its factorization.

1566836051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142439652.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1566836051 is about 39583.2799424201. The cubic root of 1566836051 is about 1161.4696125292.

The spelling of 1566836051 in words is "one billion, five hundred sixty-six million, eight hundred thirty-six thousand, fifty-one".