10020204640 has 24 divisors (see below), whose sum is σ = 23672733840. Its totient is φ = 4008081792.

The previous prime is 10020204599. The next prime is 10020204659. The reversal of 10020204640 is 4640202001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31312980 + ... + 31313299.

It is an arithmetic number, because the mean of its divisors is an integer number (986363910).

Almost surely, 2^10020204640 is an apocalyptic number.

10020204640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020204640 is an abundant number, since it is smaller than the sum of its proper divisors (13652529200).

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

10020204640 is an equidigital number, since it uses as much as digits as its factorization.

10020204640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62626294 (or 62626286 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10020204640 its reverse (4640202001), we get a palindrome (14660406641).

The spelling of 10020204640 in words is "ten billion, twenty million, two hundred four thousand, six hundred forty".