601660615 has 4 divisors (see below), whose sum is σ = 721992744. Its totient is φ = 481328488.

The previous prime is 601660607. The next prime is 601660649. The reversal of 601660615 is 516066106.

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

It is a cyclic number.

It is not a de Polignac number, because 601660615 - 2³ = 601660607 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 60166057 + ... + 60166066.

It is an arithmetic number, because the mean of its divisors is an integer number (180498186).

Almost surely, 2^601660615 is an apocalyptic number.

601660615 is a deficient number, since it is larger than the sum of its proper divisors (120332129).

601660615 is a wasteful number, since it uses less digits than its factorization.

601660615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120332128.

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

The square root of 601660615 is about 24528.7711677532. The cubic root of 601660615 is about 844.2100690573.

The spelling of 601660615 in words is "six hundred one million, six hundred sixty thousand, six hundred fifteen".