20014526650421 has 4 divisors (see below), whose sum is σ = 20220861976812. Its totient is φ = 19808191324032.

The previous prime is 20014526650379. The next prime is 20014526650439. The reversal of 20014526650421 is 12405662541002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12974684957521 + 7039841692900 = 3602039^2 + 2653270^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014526650421 - 2¹⁸ = 20014526388277 is a prime.

It is a super-3 number, since 3×20014526650421³ (a number of 41 digits) contains 333 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 (20014526650441) 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, 103167663050 + ... + 103167663243.

It is an arithmetic number, because the mean of its divisors is an integer number (5055215494203).

Almost surely, 2^{20014526650421} is an apocalyptic number.

It is an amenable number.

20014526650421 is a deficient number, since it is larger than the sum of its proper divisors (206335326391).

20014526650421 is an equidigital number, since it uses as much as digits as its factorization.

20014526650421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206335326390.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 20014526650421 in words is "twenty trillion, fourteen billion, five hundred twenty-six million, six hundred fifty thousand, four hundred twenty-one".