20896793520 has 80 divisors (see below), whose sum is σ = 67596602112. Its totient is φ = 5330195200.

The previous prime is 20896793513. The next prime is 20896793591. The reversal of 20896793520 is 2539769802.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×20896793520³ (a number of 32 digits) contains 333 as substring.

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, 1887306 + ... + 1898345.

Almost surely, 2^20896793520 is an apocalyptic number.

20896793520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20896793520 is an abundant number, since it is smaller than the sum of its proper divisors (46699808592).

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

20896793520 is a wasteful number, since it uses less digits than its factorization.

20896793520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785690 (or 3785684 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 20896793520 in words is "twenty billion, eight hundred ninety-six million, seven hundred ninety-three thousand, five hundred twenty".