20606525416 has 16 divisors (see below), whose sum is σ = 38979159300. Its totient is φ = 10212082944.

The previous prime is 20606525413. The next prime is 20606525507. The reversal of 20606525416 is 61452560602.

It can be written as a sum of positive squares in 2 ways, for example, as 18210422916 + 2396102500 = 134946^2 + 48950^2 .

It is not an unprimeable number, because it can be changed into a prime (20606525413) 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, 11396511 + ... + 11398318.

Almost surely, 2^20606525416 is an apocalyptic number.

It is an amenable number.

20606525416 is a deficient number, since it is larger than the sum of its proper divisors (18372633884).

20606525416 is a wasteful number, since it uses less digits than its factorization.

20606525416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22794948 (or 22794944 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20606525416 in words is "twenty billion, six hundred six million, five hundred twenty-five thousand, four hundred sixteen".