213655632140 has 12 divisors (see below), whose sum is σ = 448676827536. Its totient is φ = 85462252848.

The previous prime is 213655632109. The next prime is 213655632161. The reversal of 213655632140 is 41236556312.

It is a junction number, because it is equal to n+sod(n) for n = 213655632094 and 213655632103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5341390784 + ... + 5341390823.

It is an arithmetic number, because the mean of its divisors is an integer number (37389735628).

Almost surely, 2^213655632140 is an apocalyptic number.

213655632140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213655632140 is an abundant number, since it is smaller than the sum of its proper divisors (235021195396).

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

213655632140 is a wasteful number, since it uses less digits than its factorization.

213655632140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10682781616 (or 10682781614 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 213655632140 in words is "two hundred thirteen billion, six hundred fifty-five million, six hundred thirty-two thousand, one hundred forty".