20346512511608 has 8 divisors (see below), whose sum is σ = 38149710959280. Its totient is φ = 10173256255800.

The previous prime is 20346512511557. The next prime is 20346512511617. The reversal of 20346512511608 is 80611521564302.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271657031968 + ... + 1271657031983.

It is an arithmetic number, because the mean of its divisors is an integer number (4768713869910).

Almost surely, 2^{20346512511608} is an apocalyptic number.

It is an amenable number.

20346512511608 is a deficient number, since it is larger than the sum of its proper divisors (17803198447672).

20346512511608 is a wasteful number, since it uses less digits than its factorization.

20346512511608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543314063957 (or 2543314063953 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 20346512511608 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, five hundred eleven thousand, six hundred eight".