166420415145342 has 16 divisors (see below), whose sum is σ = 333502541688960. Its totient is φ = 55363186482072.

The previous prime is 166420415145263. The next prime is 166420415145409. The reversal of 166420415145342 is 243541514024661.

It is a junction number, because it is equal to n+sod(n) for n = 166420415145291 and 166420415145300.

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 7 ways as a sum of consecutive naturals, for example, 27571304992 + ... + 27571311027.

It is an arithmetic number, because the mean of its divisors is an integer number (20843908855560).

Almost surely, 2^{166420415145342} is an apocalyptic number.

166420415145342 is an abundant number, since it is smaller than the sum of its proper divisors (167082126543618).

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

166420415145342 is a wasteful number, since it uses less digits than its factorization.

166420415145342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55142616527.

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 166420415145342 in words is "one hundred sixty-six trillion, four hundred twenty billion, four hundred fifteen million, one hundred forty-five thousand, three hundred forty-two".