20195496960 has 176 divisors, whose sum is σ = 66098383296. Its totient is φ = 5260050432.

The previous prime is 20195496943. The next prime is 20195496973. The reversal of 20195496960 is 6969459102.

It is a super-2 number, since 2×20195496960² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 645192 + ... + 675768.

It is an arithmetic number, because the mean of its divisors is an integer number (375558996).

Almost surely, 2^20195496960 is an apocalyptic number.

20195496960 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 20195496960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33049191648).

20195496960 is an abundant number, since it is smaller than the sum of its proper divisors (45902886336).

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

20195496960 is a wasteful number, since it uses less digits than its factorization.

20195496960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30648 (or 30630 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 20195496960 in words is "twenty billion, one hundred ninety-five million, four hundred ninety-six thousand, nine hundred sixty".