60661658 has 4 divisors (see below), whose sum is σ = 90992490. Its totient is φ = 30330828.

The previous prime is 60661639. The next prime is 60661681. The reversal of 60661658 is 85616606.

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

It can be written as a sum of positive squares in only one way, i.e., 53333809 + 7327849 = 7303^2 + 2707^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165413 + ... + 15165416.

Almost surely, 2^60661658 is an apocalyptic number.

60661658 is a deficient number, since it is larger than the sum of its proper divisors (30330832).

60661658 is a wasteful number, since it uses less digits than its factorization.

60661658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30330831.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 60661658 is about 7788.5594303440. The cubic root of 60661658 is about 392.9205639853.

The spelling of 60661658 in words is "sixty million, six hundred sixty-one thousand, six hundred fifty-eight".