210532164749 has 4 divisors (see below), whose sum is σ = 212897694780. Its totient is φ = 208166634720.

The previous prime is 210532164737. The next prime is 210532164793. The reversal of 210532164749 is 947461235012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16211655625 + 194320509124 = 127325^2 + 440818^2 .

It is a cyclic number.

It is not a de Polignac number, because 210532164749 - 2¹² = 210532160653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210532164709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182764882 + ... + 1182765059.

It is an arithmetic number, because the mean of its divisors is an integer number (53224423695).

Almost surely, 2^210532164749 is an apocalyptic number.

It is an amenable number.

210532164749 is a deficient number, since it is larger than the sum of its proper divisors (2365530031).

210532164749 is an equidigital number, since it uses as much as digits as its factorization.

210532164749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365530030.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 210532164749 in words is "two hundred ten billion, five hundred thirty-two million, one hundred sixty-four thousand, seven hundred forty-nine".