651157161 has 8 divisors (see below), whose sum is σ = 878670240. Its totient is φ = 428874432.

The previous prime is 651157159. The next prime is 651157187. The reversal of 651157161 is 161751156.

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

It is not a de Polignac number, because 651157161 - 2¹ = 651157159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (651157061) 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 7 ways as a sum of consecutive naturals, for example, 1307296 + ... + 1307793.

It is an arithmetic number, because the mean of its divisors is an integer number (109833780).

Almost surely, 2^651157161 is an apocalyptic number.

It is an amenable number.

651157161 is a deficient number, since it is larger than the sum of its proper divisors (227513079).

651157161 is a wasteful number, since it uses less digits than its factorization.

651157161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615175.

The product of its digits is 6300, while the sum is 33.

The square root of 651157161 is about 25517.7812711058. The cubic root of 651157161 is about 866.7528406588.

The spelling of 651157161 in words is "six hundred fifty-one million, one hundred fifty-seven thousand, one hundred sixty-one".