101666156056 has 16 divisors (see below), whose sum is σ = 193749027840. Its totient is φ = 49999748640.

The previous prime is 101666156047. The next prime is 101666156093. The reversal of 101666156056 is 650651666101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104165656 + ... + 104166631.

It is an arithmetic number, because the mean of its divisors is an integer number (12109314240).

Almost surely, 2^101666156056 is an apocalyptic number.

It is an amenable number.

101666156056 is a deficient number, since it is larger than the sum of its proper divisors (92082871784).

101666156056 is a wasteful number, since it uses less digits than its factorization.

101666156056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208332354 (or 208332350 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 101666156056 in words is "one hundred one billion, six hundred sixty-six million, one hundred fifty-six thousand, fifty-six".