205632133620 has 96 divisors (see below), whose sum is σ = 609841104768. Its totient is φ = 51592507392.

The previous prime is 205632133601. The next prime is 205632133633. The reversal of 205632133620 is 26331236502.

It is a super-2 number, since 2×205632133620² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3194392 + ... + 3258128.

It is an arithmetic number, because the mean of its divisors is an integer number (6352511508).

Almost surely, 2^205632133620 is an apocalyptic number.

205632133620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205632133620 is an abundant number, since it is smaller than the sum of its proper divisors (404208971148).

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

205632133620 is a wasteful number, since it uses less digits than its factorization.

205632133620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66929 (or 66927 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The spelling of 205632133620 in words is "two hundred five billion, six hundred thirty-two million, one hundred thirty-three thousand, six hundred twenty".