11520514644455 has 16 divisors (see below), whose sum is σ = 13840642948608. Its totient is φ = 9205731780000.

The previous prime is 11520514644413. The next prime is 11520514644461. The reversal of 11520514644455 is 55444641502511.

It is not a de Polignac number, because 11520514644455 - 2¹⁰ = 11520514643431 is a prime.

It is a Duffinian number.

It is a congruent 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, 25372070 + ... + 25822140.

It is an arithmetic number, because the mean of its divisors is an integer number (865040184288).

Almost surely, 2^{11520514644455} is an apocalyptic number.

11520514644455 is a deficient number, since it is larger than the sum of its proper divisors (2320128304153).

11520514644455 is a wasteful number, since it uses less digits than its factorization.

11520514644455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455998.

The product of its (nonzero) digits is 1920000, while the sum is 47.

The spelling of 11520514644455 in words is "eleven trillion, five hundred twenty billion, five hundred fourteen million, six hundred forty-four thousand, four hundred fifty-five".