166563061531354 has 16 divisors (see below), whose sum is σ = 252654138009000. Its totient is φ = 82345032588544.

The previous prime is 166563061531241. The next prime is 166563061531369. The reversal of 166563061531354 is 453135160365661.

It can be written as a sum of positive squares in 4 ways, for example, as 157495597575625 + 9067463955729 = 12549725^2 + 3011223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166563061531295 and 166563061531304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15575094 + ... + 23993950.

Almost surely, 2^{166563061531354} is an apocalyptic number.

166563061531354 is a deficient number, since it is larger than the sum of its proper divisors (86091076477646).

166563061531354 is a wasteful number, since it uses less digits than its factorization.

166563061531354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8530097.

The product of its (nonzero) digits is 17496000, while the sum is 55.

The spelling of 166563061531354 in words is "one hundred sixty-six trillion, five hundred sixty-three billion, sixty-one million, five hundred thirty-one thousand, three hundred fifty-four".