20019167244 has 36 divisors (see below), whose sum is σ = 50814003240. Its totient is φ = 6645363840.

The previous prime is 20019167237. The next prime is 20019167297. The reversal of 20019167244 is 44276191002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20019167199 and 20019167208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1145034 + ... + 1162385.

It is an arithmetic number, because the mean of its divisors is an integer number (1411500090).

Almost surely, 2^20019167244 is an apocalyptic number.

It is an amenable number.

20019167244 is an abundant number, since it is smaller than the sum of its proper divisors (30794835996).

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

20019167244 is a wasteful number, since it uses less digits than its factorization.

20019167244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307670 (or 2307665 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20019167244 in words is "twenty billion, nineteen million, one hundred sixty-seven thousand, two hundred forty-four".