102261666606 has 32 divisors (see below), whose sum is σ = 223135250688. Its totient is φ = 30985760640.

The previous prime is 102261666593. The next prime is 102261666607. The reversal of 102261666606 is 606666162201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102261666607) 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, 807366 + ... + 925398.

It is an arithmetic number, because the mean of its divisors is an integer number (6972976584).

Almost surely, 2^102261666606 is an apocalyptic number.

102261666606 is an abundant number, since it is smaller than the sum of its proper divisors (120873584082).

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

102261666606 is a wasteful number, since it uses less digits than its factorization.

102261666606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131176.

The product of its (nonzero) digits is 186624, while the sum is 42.

It can be divided in two parts, 102261 and 666606, that added together give a palindrome (768867).

The spelling of 102261666606 in words is "one hundred two billion, two hundred sixty-one million, six hundred sixty-six thousand, six hundred six".