102011665511 has 8 divisors (see below), whose sum is σ = 116596408320. Its totient is φ = 87429834648.

The previous prime is 102011665487. The next prime is 102011665529. The reversal of 102011665511 is 115566110201.

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

It is a cyclic number.

It is not a de Polignac number, because 102011665511 - 2¹⁸ = 102011403367 is a prime.

It is a super-2 number, since 2×102011665511² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011665541) 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, 652391 + ... + 793496.

It is an arithmetic number, because the mean of its divisors is an integer number (14574551040).

Almost surely, 2^102011665511 is an apocalyptic number.

102011665511 is a deficient number, since it is larger than the sum of its proper divisors (14584742809).

102011665511 is a wasteful number, since it uses less digits than its factorization.

102011665511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455973.

The product of its (nonzero) digits is 1800, while the sum is 29.

Adding to 102011665511 its reverse (115566110201), we get a palindrome (217577775712).

The spelling of 102011665511 in words is "one hundred two billion, eleven million, six hundred sixty-five thousand, five hundred eleven".