20616037013 has 8 divisors (see below), whose sum is σ = 24220239456. Its totient is φ = 17300170800.

The previous prime is 20616036949. The next prime is 20616037021. The reversal of 20616037013 is 31073061602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20616037013 - 2⁶ = 20616036949 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 (20616037073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72083903 + ... + 72084188.

It is an arithmetic number, because the mean of its divisors is an integer number (3027529932).

Almost surely, 2^20616037013 is an apocalyptic number.

It is an amenable number.

20616037013 is a deficient number, since it is larger than the sum of its proper divisors (3604202443).

20616037013 is a wasteful number, since it uses less digits than its factorization.

20616037013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144168115.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 20616037013 its reverse (31073061602), we get a palindrome (51689098615).

The spelling of 20616037013 in words is "twenty billion, six hundred sixteen million, thirty-seven thousand, thirteen".