20601597424 has 40 divisors (see below), whose sum is σ = 42858872928. Its totient is φ = 9558312960.

The previous prime is 20601597413. The next prime is 20601597433. The reversal of 20601597424 is 42479510602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514077 + ... + 552700.

Almost surely, 2^20601597424 is an apocalyptic number.

It is an amenable number.

20601597424 is an abundant number, since it is smaller than the sum of its proper divisors (22257275504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20601597424 is a wasteful number, since it uses less digits than its factorization.

20601597424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066873 (or 1066867 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20601597424 in words is "twenty billion, six hundred one million, five hundred ninety-seven thousand, four hundred twenty-four".