211620643325 has 48 divisors (see below), whose sum is σ = 324750631296. Its totient is φ = 133208582400.

The previous prime is 211620643319. The next prime is 211620643337. The reversal of 211620643325 is 523346026112.

211620643325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211620643325 - 2³⁴ = 194440774141 is a prime.

It is a super-3 number, since 3×211620643325³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 154814 + ... + 668736.

It is an arithmetic number, because the mean of its divisors is an integer number (6765638152).

Almost surely, 2^211620643325 is an apocalyptic number.

211620643325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211620643325 is a deficient number, since it is larger than the sum of its proper divisors (113129987971).

211620643325 is a wasteful number, since it uses less digits than its factorization.

211620643325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514134 (or 514129 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 211620643325 its reverse (523346026112), we get a palindrome (734966669437).

The spelling of 211620643325 in words is "two hundred eleven billion, six hundred twenty million, six hundred forty-three thousand, three hundred twenty-five".