58661537641 has 4 divisors (see below), whose sum is σ = 67041757312. Its totient is φ = 50281317972.

The previous prime is 58661537639. The next prime is 58661537749. The reversal of 58661537641 is 14673516685.

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 a cyclic number.

It is not a de Polignac number, because 58661537641 - 2¹ = 58661537639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58661537621) 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, 4190109825 + ... + 4190109838.

It is an arithmetic number, because the mean of its divisors is an integer number (16760439328).

Almost surely, 2^58661537641 is an apocalyptic number.

It is an amenable number.

58661537641 is a deficient number, since it is larger than the sum of its proper divisors (8380219671).

58661537641 is an equidigital number, since it uses as much as digits as its factorization.

58661537641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380219670.

The product of its digits is 3628800, while the sum is 52.

The spelling of 58661537641 in words is "fifty-eight billion, six hundred sixty-one million, five hundred thirty-seven thousand, six hundred forty-one".