50166211638 has 16 divisors (see below), whose sum is σ = 100434502656. Its totient is φ = 16705057320.

The previous prime is 50166211633. The next prime is 50166211649. The reversal of 50166211638 is 83611266105.

50166211638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 50166211596 and 50166211605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50166211633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4246918 + ... + 4258713.

It is an arithmetic number, because the mean of its divisors is an integer number (6277156416).

Almost surely, 2^50166211638 is an apocalyptic number.

50166211638 is an abundant number, since it is smaller than the sum of its proper divisors (50268291018).

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

50166211638 is a wasteful number, since it uses less digits than its factorization.

50166211638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8506619.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 50166211638 in words is "fifty billion, one hundred sixty-six million, two hundred eleven thousand, six hundred thirty-eight".