166525022651045 has 8 divisors (see below), whose sum is σ = 199832762656896. Its totient is φ = 133218194470416.

The previous prime is 166525022651021. The next prime is 166525022651081. The reversal of 166525022651045 is 540156220525661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166525022651045 - 2⁶ = 166525022650981 is a prime.

It is a super-3 number, since 3×166525022651045³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166525022650984 and 166525022651002.

It is a congruent number.

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, 227554457 + ... + 228285086.

It is an arithmetic number, because the mean of its divisors is an integer number (24979095332112).

Almost surely, 2^{166525022651045} is an apocalyptic number.

It is an amenable number.

166525022651045 is a deficient number, since it is larger than the sum of its proper divisors (33307740005851).

166525022651045 is an equidigital number, since it uses as much as digits as its factorization.

166525022651045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455912611.

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 166525022651045 in words is "one hundred sixty-six trillion, five hundred twenty-five billion, twenty-two million, six hundred fifty-one thousand, forty-five".