20553714068 has 24 divisors (see below), whose sum is σ = 38099619432. Its totient is φ = 9668578304.

The previous prime is 20553714067. The next prime is 20553714091. The reversal of 20553714068 is 86041735502.

It can be written as a sum of positive squares in 4 ways, for example, as 185286544 + 20368427524 = 13612^2 + 142718^2 .

It is a super-2 number, since 2×20553714068² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20553714061) 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, 121646 + ... + 236442.

It is an arithmetic number, because the mean of its divisors is an integer number (1587484143).

Almost surely, 2^20553714068 is an apocalyptic number.

It is an amenable number.

20553714068 is a deficient number, since it is larger than the sum of its proper divisors (17545905364).

20553714068 is a wasteful number, since it uses less digits than its factorization.

20553714068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117451 (or 117449 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 20553714068 in words is "twenty billion, five hundred fifty-three million, seven hundred fourteen thousand, sixty-eight".