20189562562 has 16 divisors (see below), whose sum is σ = 32639382720. Its totient is φ = 9310981392.

The previous prime is 20189562551. The next prime is 20189562563. The reversal of 20189562562 is 26526598102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20189562563) 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, 269262 + ... + 335977.

It is an arithmetic number, because the mean of its divisors is an integer number (2039961420).

Almost surely, 2^20189562562 is an apocalyptic number.

20189562562 is a deficient number, since it is larger than the sum of its proper divisors (12449820158).

20189562562 is a wasteful number, since it uses less digits than its factorization.

20189562562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606537.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 20189562562 in words is "twenty billion, one hundred eighty-nine million, five hundred sixty-two thousand, five hundred sixty-two".