166415630546503 has 8 divisors (see below), whose sum is σ = 179216961311808. Its totient is φ = 153614318126304.

The previous prime is 166415630546471. The next prime is 166415630546507. The reversal of 166415630546503 is 305645036514661.

166415630546503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 166415630546503 - 2⁵ = 166415630546471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166415630546507) 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, 18593325 + ... + 26048857.

It is an arithmetic number, because the mean of its divisors is an integer number (22402120163976).

Almost surely, 2^{166415630546503} is an apocalyptic number.

166415630546503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166415630546503 is a deficient number, since it is larger than the sum of its proper divisors (12801330765305).

166415630546503 is a wasteful number, since it uses less digits than its factorization.

166415630546503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172553.

The product of its (nonzero) digits is 23328000, while the sum is 55.

The spelling of 166415630546503 in words is "one hundred sixty-six trillion, four hundred fifteen billion, six hundred thirty million, five hundred forty-six thousand, five hundred three".