20259219132 has 18 divisors (see below), whose sum is σ = 51210804008. Its totient is φ = 6753073032.

The previous prime is 20259219121. The next prime is 20259219139. The reversal of 20259219132 is 23191295202.

20259219132 is a `hidden beast` number, since 20 + 2 + 592 + 19 + 1 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 562756087 = 20259219132 / (2 + 0 + 2 + 5 + 9 + 2 + 1 + 9 + 1 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20259219139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281378008 + ... + 281378079.

Almost surely, 2^20259219132 is an apocalyptic number.

It is an amenable number.

20259219132 is an abundant number, since it is smaller than the sum of its proper divisors (30951584876).

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

20259219132 is a wasteful number, since it uses less digits than its factorization.

20259219132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562756097 (or 562756092 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 20259219132 in words is "twenty billion, two hundred fifty-nine million, two hundred nineteen thousand, one hundred thirty-two".