166275543204363 has 64 divisors (see below), whose sum is σ = 248930649446400. Its totient is φ = 98107878481920.

The previous prime is 166275543204343. The next prime is 166275543204521. The reversal of 166275543204363 is 363402345572661.

It is not a de Polignac number, because 166275543204363 - 2¹⁷ = 166275543073291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (166275543204343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69462195 + ... + 71816067.

It is an arithmetic number, because the mean of its divisors is an integer number (3889541397600).

Almost surely, 2^{166275543204363} is an apocalyptic number.

166275543204363 is a deficient number, since it is larger than the sum of its proper divisors (82655106242037).

166275543204363 is a wasteful number, since it uses less digits than its factorization.

166275543204363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354452.

The product of its (nonzero) digits is 65318400, while the sum is 57.

The spelling of 166275543204363 in words is "one hundred sixty-six trillion, two hundred seventy-five billion, five hundred forty-three million, two hundred four thousand, three hundred sixty-three".