20315615323036 has 48 divisors (see below), whose sum is σ = 39229702646400. Its totient is φ = 9128923272000.

The previous prime is 20315615323013. The next prime is 20315615323039. The reversal of 20315615323036 is 63032351651302.

It is a self number, because there is not a number n which added to its sum of digits gives 20315615323036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315615323039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5959770 + ... + 8726401.

It is an arithmetic number, because the mean of its divisors is an integer number (817285471800).

Almost surely, 2^{20315615323036} is an apocalyptic number.

It is an amenable number.

20315615323036 is a deficient number, since it is larger than the sum of its proper divisors (18914087323364).

20315615323036 is a wasteful number, since it uses less digits than its factorization.

20315615323036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14686546 (or 14686544 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 40.

Adding to 20315615323036 its reverse (63032351651302), we get a palindrome (83347966974338).

The spelling of 20315615323036 in words is "twenty trillion, three hundred fifteen billion, six hundred fifteen million, three hundred twenty-three thousand, thirty-six".