209648035259164 has 6 divisors (see below), whose sum is σ = 366884061703544. Its totient is φ = 104824017629580.

The previous prime is 209648035259137. The next prime is 209648035259197. The reversal of 209648035259164 is 461952530846902.

It is a junction number, because it is equal to n+sod(n) for n = 209648035259096 and 209648035259105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26206004407392 + ... + 26206004407399.

Almost surely, 2^{209648035259164} is an apocalyptic number.

It is an amenable number.

209648035259164 is a deficient number, since it is larger than the sum of its proper divisors (157236026444380).

209648035259164 is a wasteful number, since it uses less digits than its factorization.

209648035259164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52412008814795 (or 52412008814793 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 64.

The spelling of 209648035259164 in words is "two hundred nine trillion, six hundred forty-eight billion, thirty-five million, two hundred fifty-nine thousand, one hundred sixty-four".