20350181400 has 48 divisors (see below), whose sum is σ = 63085564200. Its totient is φ = 5426714880.

The previous prime is 20350181389. The next prime is 20350181429. The reversal of 20350181400 is 418105302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16957885 + ... + 16959084.

Almost surely, 2^20350181400 is an apocalyptic number.

20350181400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350181400 is an abundant number, since it is smaller than the sum of its proper divisors (42735382800).

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

20350181400 is a wasteful number, since it uses less digits than its factorization.

20350181400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33916988 (or 33916979 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20350181400 its reverse (418105302), we get a palindrome (20768286702).

The spelling of 20350181400 in words is "twenty billion, three hundred fifty million, one hundred eighty-one thousand, four hundred".