151578968331 has 32 divisors (see below), whose sum is σ = 232716718080. Its totient is φ = 85965931296.

The previous prime is 151578968329. The next prime is 151578968339. The reversal of 151578968331 is 133869875151.

It is a happy number.

It is not a de Polignac number, because 151578968331 - 2¹ = 151578968329 is a prime.

It is a super-2 number, since 2×151578968331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151578968339) 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 in 31 ways as a sum of consecutive naturals, for example, 2278320 + ... + 2343906.

It is an arithmetic number, because the mean of its divisors is an integer number (7272397440).

Almost surely, 2^151578968331 is an apocalyptic number.

151578968331 is a deficient number, since it is larger than the sum of its proper divisors (81137749749).

151578968331 is a wasteful number, since it uses less digits than its factorization.

151578968331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66423.

The product of its digits is 5443200, while the sum is 57.

The spelling of 151578968331 in words is "one hundred fifty-one billion, five hundred seventy-eight million, nine hundred sixty-eight thousand, three hundred thirty-one".