20111650655 has 32 divisors (see below), whose sum is σ = 25111944000. Its totient is φ = 15444172800.

The previous prime is 20111650633. The next prime is 20111650673. The reversal of 20111650655 is 55605611102.

It is not a de Polignac number, because 20111650655 - 2²⁸ = 19843215199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35221520 + ... + 35222090.

It is an arithmetic number, because the mean of its divisors is an integer number (784748250).

Almost surely, 2^20111650655 is an apocalyptic number.

20111650655 is a deficient number, since it is larger than the sum of its proper divisors (5000293345).

20111650655 is a wasteful number, since it uses less digits than its factorization.

20111650655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 20111650655 in words is "twenty billion, one hundred eleven million, six hundred fifty thousand, six hundred fifty-five".