8101123248555 has 24 divisors (see below), whose sum is σ = 14494912997760. Its totient is φ = 4181224901760.

The previous prime is 8101123248541. The next prime is 8101123248607. The reversal of 8101123248555 is 5558423211018.

It is a happy number.

8101123248555 is a `hidden beast` number, since 8 + 1 + 0 + 112 + 3 + 2 + 485 + 55 = 666.

It is not a de Polignac number, because 8101123248555 - 2¹⁴ = 8101123232171 is a prime.

It is a super-3 number, since 3×8101123248555³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8101123248555.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2903627010 + ... + 2903629799.

It is an arithmetic number, because the mean of its divisors is an integer number (603954708240).

Almost surely, 2^{8101123248555} is an apocalyptic number.

8101123248555 is a deficient number, since it is larger than the sum of its proper divisors (6393789749205).

8101123248555 is a wasteful number, since it uses less digits than its factorization.

8101123248555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807256851 (or 5807256848 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 8101123248555 in words is "eight trillion, one hundred one billion, one hundred twenty-three million, two hundred forty-eight thousand, five hundred fifty-five".