213370747165 has 16 divisors (see below), whose sum is σ = 263960570160. Its totient is φ = 165472519680.

The previous prime is 213370747141. The next prime is 213370747223. The reversal of 213370747165 is 561747073312.

It can be written as a sum of positive squares in 8 ways, for example, as 74399108644 + 138971638521 = 272762^2 + 372789^2 .

It is not a de Polignac number, because 213370747165 - 2²³ = 213362358557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3282570 + ... + 3346939.

It is an arithmetic number, because the mean of its divisors is an integer number (16497535635).

Almost surely, 2^213370747165 is an apocalyptic number.

It is an amenable number.

213370747165 is a deficient number, since it is larger than the sum of its proper divisors (50589822995).

213370747165 is a wasteful number, since it uses less digits than its factorization.

213370747165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629712.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 213370747165 in words is "two hundred thirteen billion, three hundred seventy million, seven hundred forty-seven thousand, one hundred sixty-five".