601634424565 has 4 divisors (see below), whose sum is σ = 721961309484. Its totient is φ = 481307539648.

The previous prime is 601634424563. The next prime is 601634424569. The reversal of 601634424565 is 565424436106.

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 446857488676 + 154776935889 = 668474^2 + 393417^2 .

It is a cyclic number.

It is not a de Polignac number, because 601634424565 - 2¹ = 601634424563 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 (601634424563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60163442452 + ... + 60163442461.

It is an arithmetic number, because the mean of its divisors is an integer number (180490327371).

Almost surely, 2^601634424565 is an apocalyptic number.

It is an amenable number.

601634424565 is a deficient number, since it is larger than the sum of its proper divisors (120326884919).

601634424565 is a wasteful number, since it uses less digits than its factorization.

601634424565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120326884918.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 601634424565 in words is "six hundred one billion, six hundred thirty-four million, four hundred twenty-four thousand, five hundred sixty-five".