209996454552 has 64 divisors (see below), whose sum is σ = 530505283680. Its totient is φ = 69265631232.

The previous prime is 209996454529. The next prime is 209996454587. The reversal of 209996454552 is 255454699902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599298 + ... + 1725614.

Almost surely, 2^209996454552 is an apocalyptic number.

It is an amenable number.

209996454552 is an abundant number, since it is smaller than the sum of its proper divisors (320508829128).

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

209996454552 is a wasteful number, since it uses less digits than its factorization.

209996454552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127052 (or 127048 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 60.

The spelling of 209996454552 in words is "two hundred nine billion, nine hundred ninety-six million, four hundred fifty-four thousand, five hundred fifty-two".