20111650662 has 32 divisors (see below), whose sum is σ = 43106533632. Its totient is φ = 6239100384.

The previous prime is 20111650633. The next prime is 20111650673. The reversal of 20111650662 is 26605611102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1964308 + ... + 1974519.

It is an arithmetic number, because the mean of its divisors is an integer number (1347079176).

Almost surely, 2^20111650662 is an apocalyptic number.

20111650662 is an abundant number, since it is smaller than the sum of its proper divisors (22994882970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111650662 is a wasteful number, since it uses less digits than its factorization.

20111650662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938892.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 20111650662 in words is "twenty billion, one hundred eleven million, six hundred fifty thousand, six hundred sixty-two".