5872345006661 has 4 divisors (see below), whose sum is σ = 6711251436192. Its totient is φ = 5033438577132.

The previous prime is 5872345006609. The next prime is 5872345006667. The reversal of 5872345006661 is 1666005432785.

It is a happy number.

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.

It is not a de Polignac number, because 5872345006661 - 2¹⁸ = 5872344744517 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 (5872345006667) 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, 419453214755 + ... + 419453214768.

It is an arithmetic number, because the mean of its divisors is an integer number (1677812859048).

Almost surely, 2^{5872345006661} is an apocalyptic number.

It is an amenable number.

5872345006661 is a deficient number, since it is larger than the sum of its proper divisors (838906429531).

5872345006661 is an equidigital number, since it uses as much as digits as its factorization.

5872345006661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838906429530.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 5872345006661 in words is "five trillion, eight hundred seventy-two billion, three hundred forty-five million, six thousand, six hundred sixty-one".