101066661500 has 96 divisors (see below), whose sum is σ = 257630091264. Its totient is φ = 33914107200.

The previous prime is 101066661463. The next prime is 101066661503. The reversal of 101066661500 is 5166660101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101066661503) 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 31 ways as a sum of consecutive naturals, for example, 142694 + ... + 471693.

It is an arithmetic number, because the mean of its divisors is an integer number (2683646784).

Almost surely, 2^101066661500 is an apocalyptic number.

101066661500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101066661500 is an abundant number, since it is smaller than the sum of its proper divisors (156563429764).

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

101066661500 is a wasteful number, since it uses less digits than its factorization.

101066661500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614460 (or 614448 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 101066661500 in words is "one hundred one billion, sixty-six million, six hundred sixty-one thousand, five hundred".