20751264722063 has 8 divisors (see below), whose sum is σ = 21844194028800. Its totient is φ = 19658411163288.

The previous prime is 20751264722059. The next prime is 20751264722113. The reversal of 20751264722063 is 36022746215702.

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 20751264722063 - 2² = 20751264722059 is a prime.

It is a super-2 number, since 2×20751264722063² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20751264721999 and 20751264722017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20751264722033) 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, 18374231 + ... + 19470872.

It is an arithmetic number, because the mean of its divisors is an integer number (2730524253600).

Almost surely, 2^{20751264722063} is an apocalyptic number.

20751264722063 is a deficient number, since it is larger than the sum of its proper divisors (1092929306737).

20751264722063 is a wasteful number, since it uses less digits than its factorization.

20751264722063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37873981.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 20751264722063 in words is "twenty trillion, seven hundred fifty-one billion, two hundred sixty-four million, seven hundred twenty-two thousand, sixty-three".