11211454056015 has 48 divisors (see below), whose sum is σ = 19708300505088. Its totient is φ = 5895303357888.

The previous prime is 11211454055941. The next prime is 11211454056059. The reversal of 11211454056015 is 51065045411211.

11211454056015 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 1 + 4 + 5 + 40 + 5 + 601 + 5 = 666.

It is not a de Polignac number, because 11211454056015 - 2¹⁰ = 11211454054991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4275759 + ... + 6380048.

It is an arithmetic number, because the mean of its divisors is an integer number (410589593856).

Almost surely, 2^{11211454056015} is an apocalyptic number.

11211454056015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11211454056015 is a deficient number, since it is larger than the sum of its proper divisors (8496846449073).

11211454056015 is a wasteful number, since it uses less digits than its factorization.

11211454056015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10656148 (or 10656145 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

Adding to 11211454056015 its reverse (51065045411211), we get a palindrome (62276499467226).

The spelling of 11211454056015 in words is "eleven trillion, two hundred eleven billion, four hundred fifty-four million, fifty-six thousand, fifteen".