5661002023 has 8 divisors (see below), whose sum is σ = 6000308928. Its totient is φ = 5322395904.

The previous prime is 5661002021. The next prime is 5661002051. The reversal of 5661002023 is 3202001665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5661002023 - 2¹ = 5661002021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661002021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158511 + ... + 190912.

It is an arithmetic number, because the mean of its divisors is an integer number (750038616).

Almost surely, 2^5661002023 is an apocalyptic number.

5661002023 is a deficient number, since it is larger than the sum of its proper divisors (339306905).

5661002023 is a wasteful number, since it uses less digits than its factorization.

5661002023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350393.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 5661002023 is about 75239.6306676209. The cubic root of 5661002023 is about 1782.2328188156.

Adding to 5661002023 its reverse (3202001665), we get a palindrome (8863003688).

The spelling of 5661002023 in words is "five billion, six hundred sixty-one million, two thousand, twenty-three".