58158661586661 has 6 divisors (see below), whose sum is σ = 84006955625190. Its totient is φ = 38772441057768.

The previous prime is 58158661586621. The next prime is 58158661586671. The reversal of 58158661586661 is 16668516685185.

It can be written as a sum of positive squares in only one way, i.e., 36005580216225 + 22153081370436 = 6000465^2 + 4706706^2 .

It is not a de Polignac number, because 58158661586661 - 2¹¹ = 58158661584613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 58158661586661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58158661586621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3231036754806 + ... + 3231036754823.

It is an arithmetic number, because the mean of its divisors is an integer number (14001159270865).

Almost surely, 2^{58158661586661} is an apocalyptic number.

It is an amenable number.

58158661586661 is a deficient number, since it is larger than the sum of its proper divisors (25848294038529).

58158661586661 is a wasteful number, since it uses less digits than its factorization.

58158661586661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462073509635 (or 6462073509632 counting only the distinct ones).

The product of its digits is 497664000, while the sum is 72.

The spelling of 58158661586661 in words is "fifty-eight trillion, one hundred fifty-eight billion, six hundred sixty-one million, five hundred eighty-six thousand, six hundred sixty-one".