212063653554 has 64 divisors (see below), whose sum is σ = 453605961600. Its totient is φ = 65859775488.

The previous prime is 212063653547. The next prime is 212063653631. The reversal of 212063653554 is 455356360212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13189032 + ... + 13205100.

It is an arithmetic number, because the mean of its divisors is an integer number (7087593150).

Almost surely, 2^212063653554 is an apocalyptic number.

212063653554 is an abundant number, since it is smaller than the sum of its proper divisors (241542308046).

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

212063653554 is a wasteful number, since it uses less digits than its factorization.

212063653554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17387.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 212063653554 in words is "two hundred twelve billion, sixty-three million, six hundred fifty-three thousand, five hundred fifty-four".