58681533007661 has 4 divisors (see below), whose sum is σ = 58774530683424. Its totient is φ = 58588535331900.

The previous prime is 58681533007621. The next prime is 58681533007711. The reversal of 58681533007661 is 16670033518685.

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 58681533007661 - 2¹⁰ = 58681533006637 is a prime.

It is a super-2 number, since 2×58681533007661² (a number of 28 digits) contains 22 as substring.

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 58681533007661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58681533007621) 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, 46498836935 + ... + 46498838196.

It is an arithmetic number, because the mean of its divisors is an integer number (14693632670856).

Almost surely, 2^{58681533007661} is an apocalyptic number.

It is an amenable number.

58681533007661 is a deficient number, since it is larger than the sum of its proper divisors (92997675763).

58681533007661 is an equidigital number, since it uses as much as digits as its factorization.

58681533007661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92997675762.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 58681533007661 in words is "fifty-eight trillion, six hundred eighty-one billion, five hundred thirty-three million, seven thousand, six hundred sixty-one".