101210199966 has 48 divisors (see below), whose sum is σ = 223040575680. Its totient is φ = 33160311360.

The previous prime is 101210199953. The next prime is 101210199973. The reversal of 101210199966 is 669991012101.

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 23 ways as a sum of consecutive naturals, for example, 1563675 + ... + 1627113.

It is an arithmetic number, because the mean of its divisors is an integer number (4646678660).

Almost surely, 2^101210199966 is an apocalyptic number.

101210199966 is an abundant number, since it is smaller than the sum of its proper divisors (121830375714).

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

101210199966 is a wasteful number, since it uses less digits than its factorization.

101210199966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64961 (or 64958 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 101210199966 in words is "one hundred one billion, two hundred ten million, one hundred ninety-nine thousand, nine hundred sixty-six".