164558616061 has 4 divisors (see below), whose sum is σ = 188066989792. Its totient is φ = 141050242332.

The previous prime is 164558616011. The next prime is 164558616071. The reversal of 164558616061 is 160616855461.

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 164558616061 - 2¹¹ = 164558614013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164558615996 and 164558616014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164558616011) 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, 11754186855 + ... + 11754186868.

It is an arithmetic number, because the mean of its divisors is an integer number (47016747448).

Almost surely, 2^164558616061 is an apocalyptic number.

It is an amenable number.

164558616061 is a deficient number, since it is larger than the sum of its proper divisors (23508373731).

164558616061 is an equidigital number, since it uses as much as digits as its factorization.

164558616061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23508373730.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 164558616061 in words is "one hundred sixty-four billion, five hundred fifty-eight million, six hundred sixteen thousand, sixty-one".