102110171211556 has 48 divisors (see below), whose sum is σ = 187124896078848. Its totient is φ = 48661803476000.

The previous prime is 102110171211509. The next prime is 102110171211557. The reversal of 102110171211556 is 655112171011201.

It is a super-3 number, since 3×102110171211556³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (102110171211557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84175131 + ... + 85379581.

It is an arithmetic number, because the mean of its divisors is an integer number (3898435334976).

Almost surely, 2^{102110171211556} is an apocalyptic number.

It is an amenable number.

102110171211556 is a deficient number, since it is larger than the sum of its proper divisors (85014724867292).

102110171211556 is a wasteful number, since it uses less digits than its factorization.

102110171211556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207752 (or 1207750 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 34.

The spelling of 102110171211556 in words is "one hundred two trillion, one hundred ten billion, one hundred seventy-one million, two hundred eleven thousand, five hundred fifty-six".