102166783512 has 32 divisors (see below), whose sum is σ = 257945845680. Its totient is φ = 33718409600.

The previous prime is 102166783507. The next prime is 102166783553. The reversal of 102166783512 is 215387661201.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 21071583 + ... + 21076430.

Almost surely, 2^102166783512 is an apocalyptic number.

102166783512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102166783512 is an abundant number, since it is smaller than the sum of its proper divisors (155779062168).

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

102166783512 is a wasteful number, since it uses less digits than its factorization.

102166783512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42148123 (or 42148119 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 102166783512 in words is "one hundred two billion, one hundred sixty-six million, seven hundred eighty-three thousand, five hundred twelve".