20230592640 has 128 divisors (see below), whose sum is σ = 65262456000. Its totient is φ = 5329784832.

The previous prime is 20230592621. The next prime is 20230592687. The reversal of 20230592640 is 4629503202.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95886 + ... + 222834.

Almost surely, 2^20230592640 is an apocalyptic number.

20230592640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20230592640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32631228000).

20230592640 is an abundant number, since it is smaller than the sum of its proper divisors (45031863360).

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

20230592640 is a wasteful number, since it uses less digits than its factorization.

20230592640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127054 (or 127042 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 20230592640 in words is "twenty billion, two hundred thirty million, five hundred ninety-two thousand, six hundred forty".