16554432465155 has 32 divisors (see below), whose sum is σ = 21488956763904. Its totient is φ = 12170225966976.

The previous prime is 16554432465107. The next prime is 16554432465163. The reversal of 16554432465155 is 55156423445561.

It is a cyclic number.

It is not a de Polignac number, because 16554432465155 - 2¹⁰ = 16554432464131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16554432465155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438543992 + ... + 438581738.

It is an arithmetic number, because the mean of its divisors is an integer number (671529898872).

Almost surely, 2^{16554432465155} is an apocalyptic number.

16554432465155 is a deficient number, since it is larger than the sum of its proper divisors (4934524298749).

16554432465155 is a wasteful number, since it uses less digits than its factorization.

16554432465155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67715.

The product of its digits is 43200000, while the sum is 56.

The spelling of 16554432465155 in words is "sixteen trillion, five hundred fifty-four billion, four hundred thirty-two million, four hundred sixty-five thousand, one hundred fifty-five".