20205262460 has 24 divisors (see below), whose sum is σ = 43799796096. Its totient is φ = 7821391680.

The previous prime is 20205262457. The next prime is 20205262507. The reversal of 20205262460 is 6426250202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 16293947 + ... + 16295186.

It is an arithmetic number, because the mean of its divisors is an integer number (1824991504).

Almost surely, 2^20205262460 is an apocalyptic number.

20205262460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20205262460 is an abundant number, since it is smaller than the sum of its proper divisors (23594533636).

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

20205262460 is a wasteful number, since it uses less digits than its factorization.

20205262460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32589173 (or 32589171 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 20205262460 in words is "twenty billion, two hundred five million, two hundred sixty-two thousand, four hundred sixty".