166632735406533 has 128 divisors (see below), whose sum is σ = 268898729508864. Its totient is φ = 90604729958400.

The previous prime is 166632735406507. The next prime is 166632735406561. The reversal of 166632735406533 is 335604537236661.

It is not a de Polignac number, because 166632735406533 - 2⁹ = 166632735406021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166632735406633) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 486272385 + ... + 486614937.

It is an arithmetic number, because the mean of its divisors is an integer number (2100771324288).

Almost surely, 2^{166632735406533} is an apocalyptic number.

It is an amenable number.

166632735406533 is a deficient number, since it is larger than the sum of its proper divisors (102265994102331).

166632735406533 is a wasteful number, since it uses less digits than its factorization.

166632735406533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343035.

The product of its (nonzero) digits is 146966400, while the sum is 60.

The spelling of 166632735406533 in words is "one hundred sixty-six trillion, six hundred thirty-two billion, seven hundred thirty-five million, four hundred six thousand, five hundred thirty-three".