60911665 has 4 divisors (see below), whose sum is σ = 73094004. Its totient is φ = 48729328.

The previous prime is 60911651. The next prime is 60911677. The reversal of 60911665 is 56611906.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44395569 + 16516096 = 6663^2 + 4064^2 .

It is a cyclic number.

It is not a de Polignac number, because 60911665 - 2⁷ = 60911537 is a prime.

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 60911665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6091162 + ... + 6091171.

It is an arithmetic number, because the mean of its divisors is an integer number (18273501).

Almost surely, 2^60911665 is an apocalyptic number.

It is an amenable number.

60911665 is a deficient number, since it is larger than the sum of its proper divisors (12182339).

60911665 is a wasteful number, since it uses less digits than its factorization.

60911665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182338.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 60911665 is about 7804.5925582313. The cubic root of 60911665 is about 393.4596098594.

The spelling of 60911665 in words is "sixty million, nine hundred eleven thousand, six hundred sixty-five".