20609506200 has 48 divisors (see below), whose sum is σ = 63889471080. Its totient is φ = 5495868160.

The previous prime is 20609506199. The next prime is 20609506213. The reversal of 20609506200 is 260590602.

It is a super-3 number, since 3×20609506200³ (a number of 32 digits) contains 333 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17173989 + ... + 17175188.

Almost surely, 2^20609506200 is an apocalyptic number.

20609506200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20609506200 is an abundant number, since it is smaller than the sum of its proper divisors (43279964880).

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

20609506200 is a wasteful number, since it uses less digits than its factorization.

20609506200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34349196 (or 34349187 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 20609506200 in words is "twenty billion, six hundred nine million, five hundred six thousand, two hundred".