166251541379 has 8 divisors (see below), whose sum is σ = 207274649088. Its totient is φ = 129546655560.

The previous prime is 166251541369. The next prime is 166251541453. The reversal of 166251541379 is 973145152661.

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

It is a de Polignac number, because none of the positive numbers 2^k-166251541379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166251541369) 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, 1079555387 + ... + 1079555540.

It is an arithmetic number, because the mean of its divisors is an integer number (25909331136).

Almost surely, 2^166251541379 is an apocalyptic number.

166251541379 is a deficient number, since it is larger than the sum of its proper divisors (41023107709).

166251541379 is a wasteful number, since it uses less digits than its factorization.

166251541379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159110945.

The product of its digits is 1360800, while the sum is 50.

The spelling of 166251541379 in words is "one hundred sixty-six billion, two hundred fifty-one million, five hundred forty-one thousand, three hundred seventy-nine".