101566056566 has 8 divisors (see below), whose sum is σ = 164068245264. Its totient is φ = 46876641480.

The previous prime is 101566056563. The next prime is 101566056587. The reversal of 101566056566 is 665650665101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×101566056566³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101566056566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101566056563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953193370 + ... + 1953193421.

It is an arithmetic number, because the mean of its divisors is an integer number (20508530658).

Almost surely, 2^101566056566 is an apocalyptic number.

101566056566 is a deficient number, since it is larger than the sum of its proper divisors (62502188698).

101566056566 is a wasteful number, since it uses less digits than its factorization.

101566056566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906386806.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 101566056566 in words is "one hundred one billion, five hundred sixty-six million, fifty-six thousand, five hundred sixty-six".