20315614534650 has 192 divisors, whose sum is σ = 56619632361600. Its totient is φ = 5355696360960.

The previous prime is 20315614534639. The next prime is 20315614534669. The reversal of 20315614534650 is 5643541651302.

It is a happy number.

20315614534650 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 5 + 61 + 4 + 534 + 6 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 20315614534596 and 20315614534605.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 945209304 + ... + 945230796.

It is an arithmetic number, because the mean of its divisors is an integer number (294893918550).

Almost surely, 2^{20315614534650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20315614534650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28309816180800).

20315614534650 is an abundant number, since it is smaller than the sum of its proper divisors (36304017826950).

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

20315614534650 is a wasteful number, since it uses less digits than its factorization.

20315614534650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29470 (or 29459 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 20315614534650 in words is "twenty trillion, three hundred fifteen billion, six hundred fourteen million, five hundred thirty-four thousand, six hundred fifty".