20954704320 has 896 divisors, whose sum is σ = 85061145600. Its totient is φ = 4810752000.

The previous prime is 20954704297. The next prime is 20954704333. The reversal of 20954704320 is 2340745902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 207472270 + ... + 207472370.

Almost surely, 2^20954704320 is an apocalyptic number.

20954704320 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 20954704320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42530572800).

20954704320 is an abundant number, since it is smaller than the sum of its proper divisors (64106441280).

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

20954704320 is a wasteful number, since it uses less digits than its factorization.

20954704320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 20954704320 in words is "twenty billion, nine hundred fifty-four million, seven hundred four thousand, three hundred twenty".