105215250130155 has 48 divisors (see below), whose sum is σ = 199405668084480. Its totient is φ = 50897250734400.

The previous prime is 105215250130153. The next prime is 105215250130229. The reversal of 105215250130155 is 551031052512501.

105215250130155 is a `hidden beast` number, since 1 + 0 + 5 + 21 + 52 + 501 + 30 + 1 + 55 = 666.

It is not a de Polignac number, because 105215250130155 - 2¹ = 105215250130153 is a prime.

It is a super-2 number, since 2×105215250130155² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105215250130153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241873881 + ... + 242308490.

It is an arithmetic number, because the mean of its divisors is an integer number (4154284751760).

Almost surely, 2^{105215250130155} is an apocalyptic number.

105215250130155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105215250130155 is a deficient number, since it is larger than the sum of its proper divisors (94190417954325).

105215250130155 is a wasteful number, since it uses less digits than its factorization.

105215250130155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484182832 (or 484182829 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 105215250130155 in words is "one hundred five trillion, two hundred fifteen billion, two hundred fifty million, one hundred thirty thousand, one hundred fifty-five".