166254263013 has 8 divisors (see below), whose sum is σ = 223744055328. Its totient is φ = 109800323024.

The previous prime is 166254262969. The next prime is 166254263023. The reversal of 166254263013 is 310362452661.

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 166254263013 - 2¹⁰ = 166254261989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166254263023) 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, 258962706 + ... + 258963347.

It is an arithmetic number, because the mean of its divisors is an integer number (27968006916).

Almost surely, 2^166254263013 is an apocalyptic number.

It is an amenable number.

166254263013 is a deficient number, since it is larger than the sum of its proper divisors (57489792315).

166254263013 is a wasteful number, since it uses less digits than its factorization.

166254263013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517926163.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 166254263013 in words is "one hundred sixty-six billion, two hundred fifty-four million, two hundred sixty-three thousand, thirteen".