20346501315650 has 48 divisors (see below), whose sum is σ = 38797424071560. Its totient is φ = 7933975142400.

The previous prime is 20346501315649. The next prime is 20346501315653. The reversal of 20346501315650 is 5651310564302.

It can be written as a sum of positive squares in 12 ways, for example, as 381055586209 + 19965445729441 = 617297^2 + 4468271^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 20346501315598 and 20346501315607.

It is not an unprimeable number, because it can be changed into a prime (20346501315653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1167335 + ... + 6485034.

Almost surely, 2^{20346501315650} is an apocalyptic number.

20346501315650 is a deficient number, since it is larger than the sum of its proper divisors (18450922755910).

20346501315650 is a wasteful number, since it uses less digits than its factorization.

20346501315650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653719 (or 7653714 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 20346501315650 its reverse (5651310564302), we get a palindrome (25997811879952).

The spelling of 20346501315650 in words is "twenty trillion, three hundred forty-six billion, five hundred one million, three hundred fifteen thousand, six hundred fifty".