213201166776 has 64 divisors (see below), whose sum is σ = 575248655520. Its totient is φ = 65458014720.

The previous prime is 213201166771. The next prime is 213201166777. The reversal of 213201166776 is 677661102312.

It is a happy number.

213201166776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213201166771) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 597315 + ... + 884978.

Almost surely, 2^213201166776 is an apocalyptic number.

213201166776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

213201166776 is an abundant number, since it is smaller than the sum of its proper divisors (362047488744).

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

213201166776 is a wasteful number, since it uses less digits than its factorization.

213201166776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482776 (or 1482772 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 213201166776 in words is "two hundred thirteen billion, two hundred one million, one hundred sixty-six thousand, seven hundred seventy-six".