566720101 has 4 divisors (see below), whose sum is σ = 571182592. Its totient is φ = 562257612.

The previous prime is 566720057. The next prime is 566720113. The reversal of 566720101 is 101027665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101027665 = 5 ⋅20205533.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566720101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566720101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566720131) 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, 2231055 + ... + 2231308.

It is an arithmetic number, because the mean of its divisors is an integer number (142795648).

Almost surely, 2^566720101 is an apocalyptic number.

It is an amenable number.

566720101 is a deficient number, since it is larger than the sum of its proper divisors (4462491).

566720101 is a wasteful number, since it uses less digits than its factorization.

566720101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462490.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 566720101 is about 23805.8837475108. The cubic root of 566720101 is about 827.5410364732.

Adding to 566720101 its reverse (101027665), we get a palindrome (667747766).

The spelling of 566720101 in words is "five hundred sixty-six million, seven hundred twenty thousand, one hundred one".