166445014120340 has 48 divisors (see below), whose sum is σ = 362964690461520. Its totient is φ = 64064368926720.

The previous prime is 166445014120313. The next prime is 166445014120361. The reversal of 166445014120340 is 43021410544661.

It can be written as a sum of positive squares in 8 ways, for example, as 15416349965956 + 151028664154384 = 3926366^2 + 12289372^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390225925 + ... + 1390345644.

It is an arithmetic number, because the mean of its divisors is an integer number (7561764384615).

Almost surely, 2^{166445014120340} is an apocalyptic number.

166445014120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166445014120340 is an abundant number, since it is smaller than the sum of its proper divisors (196519676341180).

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

166445014120340 is a wasteful number, since it uses less digits than its factorization.

166445014120340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780571692 (or 2780571690 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 166445014120340 in words is "one hundred sixty-six trillion, four hundred forty-five billion, fourteen million, one hundred twenty thousand, three hundred forty".