20301613536 has 48 divisors (see below), whose sum is σ = 54297253584. Its totient is φ = 6639519744.

The previous prime is 20301613517. The next prime is 20301613559. The reversal of 20301613536 is 63531610302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989961 + ... + 2000136.

It is an arithmetic number, because the mean of its divisors is an integer number (1131192783).

Almost surely, 2^20301613536 is an apocalyptic number.

It is an amenable number.

20301613536 is an abundant number, since it is smaller than the sum of its proper divisors (33995640048).

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

20301613536 is a wasteful number, since it uses less digits than its factorization.

20301613536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990163 (or 3990155 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 20301613536 in words is "twenty billion, three hundred one million, six hundred thirteen thousand, five hundred thirty-six".