151320140440 has 128 divisors (see below), whose sum is σ = 399188736000. Its totient is φ = 50553146880.

The previous prime is 151320140429. The next prime is 151320140441. The reversal of 151320140440 is 44041023151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151320140441) 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, 1786161 + ... + 1868959.

It is an arithmetic number, because the mean of its divisors is an integer number (3118662000).

Almost surely, 2^151320140440 is an apocalyptic number.

151320140440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151320140440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199594368000).

151320140440 is an abundant number, since it is smaller than the sum of its proper divisors (247868595560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151320140440 is a wasteful number, since it uses less digits than its factorization.

151320140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82985 (or 82981 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 151320140440 its reverse (44041023151), we get a palindrome (195361163591).

The spelling of 151320140440 in words is "one hundred fifty-one billion, three hundred twenty million, one hundred forty thousand, four hundred forty".