56566156151 has 4 divisors (see below), whose sum is σ = 56594398872. Its totient is φ = 56537913432.

The previous prime is 56566156121. The next prime is 56566156193. The reversal of 56566156151 is 15165166565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15165166565 = 5 ⋅3033033313.

It is a cyclic number.

It is not a de Polignac number, because 56566156151 - 2¹⁴ = 56566139767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56566156096 and 56566156105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56566156111) 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, 14118356 + ... + 14122361.

It is an arithmetic number, because the mean of its divisors is an integer number (14148599718).

Almost surely, 2^56566156151 is an apocalyptic number.

56566156151 is a deficient number, since it is larger than the sum of its proper divisors (28242721).

56566156151 is a wasteful number, since it uses less digits than its factorization.

56566156151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28242720.

The product of its digits is 810000, while the sum is 47.

The spelling of 56566156151 in words is "fifty-six billion, five hundred sixty-six million, one hundred fifty-six thousand, one hundred fifty-one".