11455113015 has 128 divisors (see below), whose sum is σ = 21893760000. Its totient is φ = 5681643264.

The previous prime is 11455113001. The next prime is 11455113029. The reversal of 11455113015 is 51031155411.

11455113015 is a `hidden beast` number, since 1 + 145 + 511 + 3 + 0 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (11455113001) and next prime (11455113029).

It is not a de Polignac number, because 11455113015 - 2⁵ = 11455112983 is a prime.

It is a super-2 number, since 2×11455113015² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11455113015.

It is a congruent number.

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 127 ways as a sum of consecutive naturals, for example, 82410816 + ... + 82410954.

It is an arithmetic number, because the mean of its divisors is an integer number (171045000).

Almost surely, 2^11455113015 is an apocalyptic number.

11455113015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11455113015 is a deficient number, since it is larger than the sum of its proper divisors (10438646985).

11455113015 is an equidigital number, since it uses as much as digits as its factorization.

11455113015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 11455113015 its reverse (51031155411), we get a palindrome (62486268426).

The spelling of 11455113015 in words is "eleven billion, four hundred fifty-five million, one hundred thirteen thousand, fifteen".