166543315005363 has 16 divisors (see below), whose sum is σ = 229221871718400. Its totient is φ = 107446847639040.

The previous prime is 166543315005337. The next prime is 166543315005383. The reversal of 166543315005363 is 363500513345661.

It is not a de Polignac number, because 166543315005363 - 2²⁹ = 166542778134451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166543315005383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19186323 + ... + 26480211.

It is an arithmetic number, because the mean of its divisors is an integer number (14326366982400).

Almost surely, 2^{166543315005363} is an apocalyptic number.

166543315005363 is a deficient number, since it is larger than the sum of its proper divisors (62678556713037).

166543315005363 is a wasteful number, since it uses less digits than its factorization.

166543315005363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539442.

The product of its (nonzero) digits is 8748000, while the sum is 51.

The spelling of 166543315005363 in words is "one hundred sixty-six trillion, five hundred forty-three billion, three hundred fifteen million, five thousand, three hundred sixty-three".