20601606502 has 16 divisors (see below), whose sum is σ = 33044166432. Its totient is φ = 9598883200.

The previous prime is 20601606499. The next prime is 20601606503. The reversal of 20601606502 is 20560610602.

It is a super-3 number, since 3×20601606502³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20601606503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2996218 + ... + 3003085.

It is an arithmetic number, because the mean of its divisors is an integer number (2065260402).

Almost surely, 2^20601606502 is an apocalyptic number.

20601606502 is a deficient number, since it is larger than the sum of its proper divisors (12442559930).

20601606502 is a wasteful number, since it uses less digits than its factorization.

20601606502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999423.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 20601606502 in words is "twenty billion, six hundred one million, six hundred six thousand, five hundred two".