212646553554 has 64 divisors (see below), whose sum is σ = 436170240000. Its totient is φ = 69097691520.

The previous prime is 212646553543. The next prime is 212646553577. The reversal of 212646553554 is 455355646212.

212646553554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12348102 + ... + 12365310.

It is an arithmetic number, because the mean of its divisors is an integer number (6815160000).

Almost surely, 2^212646553554 is an apocalyptic number.

212646553554 is an abundant number, since it is smaller than the sum of its proper divisors (223523686446).

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

212646553554 is a wasteful number, since it uses less digits than its factorization.

212646553554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17623.

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

The spelling of 212646553554 in words is "two hundred twelve billion, six hundred forty-six million, five hundred fifty-three thousand, five hundred fifty-four".