20680261237501 has 8 divisors (see below), whose sum is σ = 20759120609184. Its totient is φ = 20601487539120.

The previous prime is 20680261237481. The next prime is 20680261237633. The reversal of 20680261237501 is 10573216208602.

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

It is a cyclic number.

It is not a de Polignac number, because 20680261237501 - 2¹¹ = 20680261235453 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 (20680261237901) 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, 20934615 + ... + 21900196.

It is an arithmetic number, because the mean of its divisors is an integer number (2594890076148).

Almost surely, 2^{20680261237501} is an apocalyptic number.

It is an amenable number.

20680261237501 is a deficient number, since it is larger than the sum of its proper divisors (78859371683).

20680261237501 is a wasteful number, since it uses less digits than its factorization.

20680261237501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42836651.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20680261237501 in words is "twenty trillion, six hundred eighty billion, two hundred sixty-one million, two hundred thirty-seven thousand, five hundred one".