101666500444 has 24 divisors (see below), whose sum is σ = 187565823648. Its totient is φ = 48121835520.

The previous prime is 101666500391. The next prime is 101666500469. The reversal of 101666500444 is 444005666101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5687317 + ... + 5705164.

It is an arithmetic number, because the mean of its divisors is an integer number (7815242652).

Almost surely, 2^101666500444 is an apocalyptic number.

It is an amenable number.

101666500444 is a deficient number, since it is larger than the sum of its proper divisors (85899323204).

101666500444 is a wasteful number, since it uses less digits than its factorization.

101666500444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11392605 (or 11392603 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 101666500444 in words is "one hundred one billion, six hundred sixty-six million, five hundred thousand, four hundred forty-four".