10020766871 has 4 divisors (see below), whose sum is σ = 10020975000. Its totient is φ = 10020558744.

The previous prime is 10020766849. The next prime is 10020766901. The reversal of 10020766871 is 17866702001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17866702001 = 63487 ⋅281423.

It is a cyclic number.

It is not a de Polignac number, because 10020766871 - 2¹⁸ = 10020504727 is a prime.

It is a super-2 number, since 2×10020766871² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020763871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380 + ... + 141878.

It is an arithmetic number, because the mean of its divisors is an integer number (2505243750).

Almost surely, 2^10020766871 is an apocalyptic number.

10020766871 is a deficient number, since it is larger than the sum of its proper divisors (208129).

10020766871 is an equidigital number, since it uses as much as digits as its factorization.

10020766871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208128.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 10020766871 in words is "ten billion, twenty million, seven hundred sixty-six thousand, eight hundred seventy-one".