166451124253 has 8 divisors (see below), whose sum is σ = 175217047200. Its totient is φ = 157685735088.

The previous prime is 166451124199. The next prime is 166451124373. The reversal of 166451124253 is 352421154661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166451124253 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 (166451124953) 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, 614058 + ... + 842596.

It is an arithmetic number, because the mean of its divisors is an integer number (21902130900).

Almost surely, 2^166451124253 is an apocalyptic number.

It is an amenable number.

166451124253 is a deficient number, since it is larger than the sum of its proper divisors (8765922947).

166451124253 is a wasteful number, since it uses less digits than its factorization.

166451124253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266891.

The product of its digits is 172800, while the sum is 40.

The spelling of 166451124253 in words is "one hundred sixty-six billion, four hundred fifty-one million, one hundred twenty-four thousand, two hundred fifty-three".