166364354360523 has 32 divisors (see below), whose sum is σ = 242912232110592. Its totient is φ = 100440356889600.

The previous prime is 166364354360497. The next prime is 166364354360537. The reversal of 166364354360523 is 325063453463661.

It is not a de Polignac number, because 166364354360523 - 2¹³ = 166364354352331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166364354360423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292693083 + ... + 293260923.

It is an arithmetic number, because the mean of its divisors is an integer number (7591007253456).

Almost surely, 2^{166364354360523} is an apocalyptic number.

166364354360523 is a deficient number, since it is larger than the sum of its proper divisors (76547877750069).

166364354360523 is a wasteful number, since it uses less digits than its factorization.

166364354360523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601875.

The product of its (nonzero) digits is 83980800, while the sum is 57.

The spelling of 166364354360523 in words is "one hundred sixty-six trillion, three hundred sixty-four billion, three hundred fifty-four million, three hundred sixty thousand, five hundred twenty-three".