20636027328 has 56 divisors (see below), whose sum is σ = 62399420032. Its totient is φ = 5896007424.

The previous prime is 20636027327. The next prime is 20636027333. The reversal of 20636027328 is 82372063602.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20636027323) 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, 7675750 + ... + 7678437.

Almost surely, 2^20636027328 is an apocalyptic number.

20636027328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20636027328 is an abundant number, since it is smaller than the sum of its proper divisors (41763392704).

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

20636027328 is a wasteful number, since it uses less digits than its factorization.

20636027328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15354209 (or 15354199 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 20636027328 in words is "twenty billion, six hundred thirty-six million, twenty-seven thousand, three hundred twenty-eight".