166021341502 has 8 divisors (see below), whose sum is σ = 250283430000. Its totient is φ = 82593531504.

The previous prime is 166021341481. The next prime is 166021341511. The reversal of 166021341502 is 205143120661.

It is a happy number.

166021341502 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208569127 + ... + 208569922.

It is an arithmetic number, because the mean of its divisors is an integer number (31285428750).

Almost surely, 2^166021341502 is an apocalyptic number.

166021341502 is a deficient number, since it is larger than the sum of its proper divisors (84262088498).

166021341502 is a wasteful number, since it uses less digits than its factorization.

166021341502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417139250.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 166021341502 in words is "one hundred sixty-six billion, twenty-one million, three hundred forty-one thousand, five hundred two".