101101660551 has 48 divisors (see below), whose sum is σ = 162917015040. Its totient is φ = 60041191680.

The previous prime is 101101660537. The next prime is 101101660577. The reversal of 101101660551 is 155066101101.

101101660551 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 0 + 1 + 6 + 605 + 51 = 666.

It is not a de Polignac number, because 101101660551 - 2⁹ = 101101660039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101101660591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3190656 + ... + 3222186.

It is an arithmetic number, because the mean of its divisors is an integer number (3394104480).

Almost surely, 2^101101660551 is an apocalyptic number.

101101660551 is a deficient number, since it is larger than the sum of its proper divisors (61815354489).

101101660551 is a wasteful number, since it uses less digits than its factorization.

101101660551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32676 (or 32673 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

Adding to 101101660551 its reverse (155066101101), we get a palindrome (256167761652).

The spelling of 101101660551 in words is "one hundred one billion, one hundred one million, six hundred sixty thousand, five hundred fifty-one".