601615655 has 4 divisors (see below), whose sum is σ = 721938792. Its totient is φ = 481292520.

The previous prime is 601615613. The next prime is 601615657. The reversal of 601615655 is 556516106.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556516106 = 2 ⋅278258053.

It is not a de Polignac number, because 601615655 - 2¹⁰ = 601614631 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 (601615657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60161561 + ... + 60161570.

It is an arithmetic number, because the mean of its divisors is an integer number (180484698).

Almost surely, 2^601615655 is an apocalyptic number.

601615655 is a deficient number, since it is larger than the sum of its proper divisors (120323137).

601615655 is a wasteful number, since it uses less digits than its factorization.

601615655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120323136.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 601615655 is about 24527.8546758578. The cubic root of 601615655 is about 844.1890402418.

The spelling of 601615655 in words is "six hundred one million, six hundred fifteen thousand, six hundred fifty-five".