20545354200 has 192 divisors, whose sum is σ = 74565227520. Its totient is φ = 4581504000.

The previous prime is 20545354183. The next prime is 20545354201. The reversal of 20545354200 is 245354502.

It is a super-2 number, since 2×20545354200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20545354201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112545 + ... + 231855.

It is an arithmetic number, because the mean of its divisors is an integer number (388360560).

Almost surely, 2^20545354200 is an apocalyptic number.

20545354200 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 20545354200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37282613760).

20545354200 is an abundant number, since it is smaller than the sum of its proper divisors (54019873320).

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

20545354200 is a wasteful number, since it uses less digits than its factorization.

20545354200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119378 (or 119369 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 20545354200 in words is "twenty billion, five hundred forty-five million, three hundred fifty-four thousand, two hundred".