166605161566152 has 32 divisors (see below), whose sum is σ = 438434635701600. Its totient is φ = 52612156283904.

The previous prime is 166605161566099. The next prime is 166605161566153. The reversal of 166605161566152 is 251665161506661.

166605161566152 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166605161566152² (a number of 29 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 166605161566092 and 166605161566101.

It is not an unprimeable number, because it can be changed into a prime (166605161566153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182681097753 + ... + 182681098664.

It is an arithmetic number, because the mean of its divisors is an integer number (13701082365675).

Almost surely, 2^{166605161566152} is an apocalyptic number.

166605161566152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166605161566152 is an abundant number, since it is smaller than the sum of its proper divisors (271829474135448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166605161566152 is a wasteful number, since it uses less digits than its factorization.

166605161566152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365362196445 (or 365362196441 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 57.

The spelling of 166605161566152 in words is "one hundred sixty-six trillion, six hundred five billion, one hundred sixty-one million, five hundred sixty-six thousand, one hundred fifty-two".