151431443440 has 80 divisors (see below), whose sum is σ = 361525360896. Its totient is φ = 58954291200.

The previous prime is 151431443437. The next prime is 151431443447. The reversal of 151431443440 is 44344134151.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 151431443396 and 151431443405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151431443447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1326049 + ... + 1435711.

Almost surely, 2^151431443440 is an apocalyptic number.

151431443440 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 151431443440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180762680448).

151431443440 is an abundant number, since it is smaller than the sum of its proper divisors (210093917456).

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

151431443440 is a wasteful number, since it uses less digits than its factorization.

151431443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110138 (or 110132 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 151431443440 its reverse (44344134151), we get a palindrome (195775577591).

The spelling of 151431443440 in words is "one hundred fifty-one billion, four hundred thirty-one million, four hundred forty-three thousand, four hundred forty".