20606011550 has 48 divisors (see below), whose sum is σ = 39597465600. Its totient is φ = 7969682400.

The previous prime is 20606011541. The next prime is 20606011577. The reversal of 20606011550 is 5511060602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2039411 + ... + 2049489.

It is an arithmetic number, because the mean of its divisors is an integer number (824947200).

Almost surely, 2^20606011550 is an apocalyptic number.

20606011550 is a deficient number, since it is larger than the sum of its proper divisors (18991454050).

20606011550 is a wasteful number, since it uses less digits than its factorization.

20606011550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11441 (or 11436 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 20606011550 in words is "twenty billion, six hundred six million, eleven thousand, five hundred fifty".