20545126160 has 160 divisors (see below), whose sum is σ = 53117433600. Its totient is φ = 7341041664.

The previous prime is 20545126153. The next prime is 20545126163. The reversal of 20545126160 is 6162154502.

It is not an unprimeable number, because it can be changed into a prime (20545126163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7656179 + ... + 7658861.

It is an arithmetic number, because the mean of its divisors is an integer number (331983960).

Almost surely, 2^20545126160 is an apocalyptic number.

20545126160 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 20545126160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26558716800).

20545126160 is an abundant number, since it is smaller than the sum of its proper divisors (32572307440).

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

20545126160 is a wasteful number, since it uses less digits than its factorization.

20545126160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 20545126160 in words is "twenty billion, five hundred forty-five million, one hundred twenty-six thousand, one hundred sixty".