151016151721 has 2 divisors, whose sum is σ = 151016151722. Its totient is φ = 151016151720.

The previous prime is 151016151659. The next prime is 151016151773. The reversal of 151016151721 is 127151610151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119708388121 + 31307763600 = 345989^2 + 176940^2 .

It is a cyclic number.

It is not a de Polignac number, because 151016151721 - 2³⁵ = 116656413353 is a prime.

It is not a weakly prime, because it can be changed into another prime (151016151791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75508075860 + 75508075861.

It is an arithmetic number, because the mean of its divisors is an integer number (75508075861).

Almost surely, 2^151016151721 is an apocalyptic number.

It is an amenable number.

151016151721 is a deficient number, since it is larger than the sum of its proper divisors (1).

151016151721 is an equidigital number, since it uses as much as digits as its factorization.

151016151721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 31.

Adding to 151016151721 its reverse (127151610151), we get a palindrome (278167761872).

The spelling of 151016151721 in words is "one hundred fifty-one billion, sixteen million, one hundred fifty-one thousand, seven hundred twenty-one".