215102540371104 has 144 divisors (see below), whose sum is σ = 640083625606152. Its totient is φ = 68446703130624.

The previous prime is 215102540370973. The next prime is 215102540371123. The reversal of 215102540371104 is 401173045201512.

215102540371104 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 0 + 2 + 540 + 3 + 7 + 1 + 104 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 201107908287504 + 13994632083600 = 14181252^2 + 3740940^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×215102540371104² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189869659 + ... + 190999194.

Almost surely, 2^{215102540371104} is an apocalyptic number.

215102540371104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215102540371104 is an abundant number, since it is smaller than the sum of its proper divisors (424981085235048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215102540371104 is a wasteful number, since it uses less digits than its factorization.

215102540371104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380868959 (or 380868948 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 215102540371104 its reverse (401173045201512), we get a palindrome (616275585572616).

The spelling of 215102540371104 in words is "two hundred fifteen trillion, one hundred two billion, five hundred forty million, three hundred seventy-one thousand, one hundred four".