101665611066651 has 8 divisors (see below), whose sum is σ = 136588912578624. Its totient is φ = 67259691799560.

The previous prime is 101665611066641. The next prime is 101665611066709. The reversal of 101665611066651 is 156660116566101.

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

It is not a de Polignac number, because 101665611066651 - 2¹⁷ = 101665610935579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101665611066594 and 101665611066603.

It is not an unprimeable number, because it can be changed into a prime (101665611066641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129345560761 + ... + 129345561546.

It is an arithmetic number, because the mean of its divisors is an integer number (17073614072328).

Almost surely, 2^{101665611066651} is an apocalyptic number.

101665611066651 is a deficient number, since it is larger than the sum of its proper divisors (34923301511973).

101665611066651 is a wasteful number, since it uses less digits than its factorization.

101665611066651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258691122441.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 101665611066651 in words is "one hundred one trillion, six hundred sixty-five billion, six hundred eleven million, sixty-six thousand, six hundred fifty-one".