60165661 has 4 divisors (see below), whose sum is σ = 60226300. Its totient is φ = 60105024.

The previous prime is 60165641. The next prime is 60165671. The reversal of 60165661 is 16656106.

60165661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16656106 = 2 ⋅8328053.

It can be written as a sum of positive squares in 2 ways, for example, as 25060036 + 35105625 = 5006^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 60165661 - 2⁵ = 60165629 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 (60165641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28806 + ... + 30823.

It is an arithmetic number, because the mean of its divisors is an integer number (15056575).

Almost surely, 2^60165661 is an apocalyptic number.

It is an amenable number.

60165661 is a deficient number, since it is larger than the sum of its proper divisors (60639).

60165661 is a wasteful number, since it uses less digits than its factorization.

60165661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60638.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 60165661 is about 7756.6526930113. The cubic root of 60165661 is about 391.8467335195.

The spelling of 60165661 in words is "sixty million, one hundred sixty-five thousand, six hundred sixty-one".