20606361400 has 24 divisors (see below), whose sum is σ = 47909790720. Its totient is φ = 8242544480.

The previous prime is 20606361361. The next prime is 20606361409. The reversal of 20606361400 is 416360602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20606361409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51515704 + ... + 51516103.

It is an arithmetic number, because the mean of its divisors is an integer number (1996241280).

Almost surely, 2^20606361400 is an apocalyptic number.

20606361400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20606361400 is an abundant number, since it is smaller than the sum of its proper divisors (27303429320).

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

20606361400 is a wasteful number, since it uses less digits than its factorization.

20606361400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103031823 (or 103031814 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20606361400 in words is "twenty billion, six hundred six million, three hundred sixty-one thousand, four hundred".