150520423440 has 160 divisors (see below), whose sum is σ = 478307886336. Its totient is φ = 39134085120.

The previous prime is 150520423439. The next prime is 150520423489. The reversal of 150520423440 is 44324025051.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 150520423398 and 150520423407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18426237 + ... + 18434403.

Almost surely, 2^150520423440 is an apocalyptic number.

150520423440 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 150520423440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239153943168).

150520423440 is an abundant number, since it is smaller than the sum of its proper divisors (327787462896).

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

150520423440 is a wasteful number, since it uses less digits than its factorization.

150520423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097 (or 10091 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 150520423440 its reverse (44324025051), we get a palindrome (194844448491).

The spelling of 150520423440 in words is "one hundred fifty billion, five hundred twenty million, four hundred twenty-three thousand, four hundred forty".