20003506775751 has 16 divisors (see below), whose sum is σ = 27533377034240. Its totient is φ = 12904706000160.

The previous prime is 20003506775719. The next prime is 20003506775753. The reversal of 20003506775751 is 15757760530002.

It is not a de Polignac number, because 20003506775751 - 2⁵ = 20003506775719 is a prime.

It is a super-2 number, since 2×20003506775751² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20003506775751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003506775753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4974160 + ... + 8046693.

It is an arithmetic number, because the mean of its divisors is an integer number (1720836064640).

Almost surely, 2^{20003506775751} is an apocalyptic number.

20003506775751 is a deficient number, since it is larger than the sum of its proper divisors (7529870258489).

20003506775751 is a wasteful number, since it uses less digits than its factorization.

20003506775751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13037406.

The product of its (nonzero) digits is 1543500, while the sum is 48.

The spelling of 20003506775751 in words is "twenty trillion, three billion, five hundred six million, seven hundred seventy-five thousand, seven hundred fifty-one".