212534655546 has 16 divisors (see below), whose sum is σ = 431413629984. Its totient is φ = 69787498704.

The previous prime is 212534655527. The next prime is 212534655547. The reversal of 212534655546 is 645556435212.

It is a junction number, because it is equal to n+sod(n) for n = 212534655495 and 212534655504.

It is not an unprimeable number, because it can be changed into a prime (212534655547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264346185 + ... + 264346988.

It is an arithmetic number, because the mean of its divisors is an integer number (26963351874).

Almost surely, 2^212534655546 is an apocalyptic number.

212534655546 is an abundant number, since it is smaller than the sum of its proper divisors (218878974438).

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

212534655546 is a wasteful number, since it uses less digits than its factorization.

212534655546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528693245.

The product of its digits is 4320000, while the sum is 48.

The spelling of 212534655546 in words is "two hundred twelve billion, five hundred thirty-four million, six hundred fifty-five thousand, five hundred forty-six".