20102424562 has 16 divisors (see below), whose sum is σ = 33134990112. Its totient is φ = 9070767520.

The previous prime is 20102424553. The next prime is 20102424569. The reversal of 20102424562 is 26542420102.

It is a self number, because there is not a number n which added to its sum of digits gives 20102424562.

It is not an unprimeable number, because it can be changed into a prime (20102424569) 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 7 ways as a sum of consecutive naturals, for example, 3331828 + ... + 3337855.

It is an arithmetic number, because the mean of its divisors is an integer number (2070936882).

Almost surely, 2^20102424562 is an apocalyptic number.

20102424562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20102424562 is a deficient number, since it is larger than the sum of its proper divisors (13032565550).

20102424562 is a wasteful number, since it uses less digits than its factorization.

20102424562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6669833.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 20102424562 its reverse (26542420102), we get a palindrome (46644844664).

The spelling of 20102424562 in words is "twenty billion, one hundred two million, four hundred twenty-four thousand, five hundred sixty-two".