20751126201 has 36 divisors (see below), whose sum is σ = 32574723948. Its totient is φ = 12723564672.

The previous prime is 20751126191. The next prime is 20751126251. The reversal of 20751126201 is 10262115702.

20751126201 is a `hidden beast` number, since 20 + 7 + 5 + 1 + 12 + 620 + 1 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 10383813801 + 10367312400 = 101901^2 + 101820^2 .

It is not a de Polignac number, because 20751126201 - 2¹¹ = 20751124153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20751126251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 396691 + ... + 445943.

It is an arithmetic number, because the mean of its divisors is an integer number (904853443).

Almost surely, 2^20751126201 is an apocalyptic number.

It is an amenable number.

20751126201 is a deficient number, since it is larger than the sum of its proper divisors (11823597747).

20751126201 is a wasteful number, since it uses less digits than its factorization.

20751126201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49562 (or 49546 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 20751126201 in words is "twenty billion, seven hundred fifty-one million, one hundred twenty-six thousand, two hundred one".