11215400555545 has 16 divisors (see below), whose sum is σ = 14188212983808. Its totient is φ = 8498148390720.

The previous prime is 11215400555503. The next prime is 11215400555627. The reversal of 11215400555545 is 54555500451211.

11215400555545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11215400555545 - 2⁷ = 11215400555417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769752534 + ... + 769767103.

It is an arithmetic number, because the mean of its divisors is an integer number (886763311488).

Almost surely, 2^{11215400555545} is an apocalyptic number.

It is an amenable number.

11215400555545 is a deficient number, since it is larger than the sum of its proper divisors (2972812428263).

11215400555545 is a wasteful number, since it uses less digits than its factorization.

11215400555545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539519720.

The product of its (nonzero) digits is 500000, while the sum is 43.

The spelling of 11215400555545 in words is "eleven trillion, two hundred fifteen billion, four hundred million, five hundred fifty-five thousand, five hundred forty-five".