166245432504 has 32 divisors (see below), whose sum is σ = 421816773120. Its totient is φ = 54588051936.

The previous prime is 166245432439. The next prime is 166245432541. The reversal of 166245432504 is 405234542661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51691624 + ... + 51694839.

It is an arithmetic number, because the mean of its divisors is an integer number (13181774160).

Almost surely, 2^166245432504 is an apocalyptic number.

It is an amenable number.

166245432504 is an abundant number, since it is smaller than the sum of its proper divisors (255571340616).

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

166245432504 is a wasteful number, since it uses less digits than its factorization.

166245432504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103386539 (or 103386535 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 166245432504 in words is "one hundred sixty-six billion, two hundred forty-five million, four hundred thirty-two thousand, five hundred four".