801660151 has 4 divisors (see below), whose sum is σ = 801745600. Its totient is φ = 801574704.

The previous prime is 801660127. The next prime is 801660161. The reversal of 801660151 is 151066108.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 801660151 - 2⁷ = 801660023 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 (801660161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26631 + ... + 48088.

It is an arithmetic number, because the mean of its divisors is an integer number (200436400).

Almost surely, 2^801660151 is an apocalyptic number.

801660151 is a deficient number, since it is larger than the sum of its proper divisors (85449).

801660151 is a wasteful number, since it uses less digits than its factorization.

801660151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85448.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 801660151 is about 28313.6036385339. The cubic root of 801660151 is about 928.9594679053.

The spelling of 801660151 in words is "eight hundred one million, six hundred sixty thousand, one hundred fifty-one".