213170134545816 has 64 divisors (see below), whose sum is σ = 609061058688000. Its totient is φ = 60905399586048.

The previous prime is 213170134545799. The next prime is 213170134545817. The reversal of 213170134545816 is 618545431071312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213170134545817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26097585 + ... + 33277983.

It is an arithmetic number, because the mean of its divisors is an integer number (9516579042000).

Almost surely, 2^{213170134545816} is an apocalyptic number.

It is an amenable number.

213170134545816 is an abundant number, since it is smaller than the sum of its proper divisors (395890924142184).

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

213170134545816 is a wasteful number, since it uses less digits than its factorization.

213170134545816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7357128 (or 7357124 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 213170134545816 in words is "two hundred thirteen trillion, one hundred seventy billion, one hundred thirty-four million, five hundred forty-five thousand, eight hundred sixteen".