60661513 has 8 divisors (see below), whose sum is σ = 68311296. Its totient is φ = 53367600.

The previous prime is 60661507. The next prime is 60661529. The reversal of 60661513 is 31516606.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 60661513 - 2⁵ = 60661481 is a prime.

It is a super-3 number, since 3×60661513³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60661543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88606 + ... + 89287.

It is an arithmetic number, because the mean of its divisors is an integer number (8538912).

Almost surely, 2^60661513 is an apocalyptic number.

It is an amenable number.

60661513 is a deficient number, since it is larger than the sum of its proper divisors (7649783).

60661513 is a wasteful number, since it uses less digits than its factorization.

60661513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177935.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 60661513 is about 7788.5501218134. The cubic root of 60661513 is about 392.9202509181.

The spelling of 60661513 in words is "sixty million, six hundred sixty-one thousand, five hundred thirteen".