154420432236 has 96 divisors (see below), whose sum is σ = 457865408000. Its totient is φ = 44088940224.

The previous prime is 154420432213. The next prime is 154420432237. The reversal of 154420432236 is 632234024451.

154420432236 is a `hidden beast` number, since 1 + 5 + 4 + 420 + 4 + 3 + 223 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 154420432236.

It is not an unprimeable number, because it can be changed into a prime (154420432237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1008855 + ... + 1151793.

Almost surely, 2^154420432236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154420432236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228932704000).

154420432236 is an abundant number, since it is smaller than the sum of its proper divisors (303444975764).

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

154420432236 is a wasteful number, since it uses less digits than its factorization.

154420432236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144388 (or 144380 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 154420432236 its reverse (632234024451), we get a palindrome (786654456687).

The spelling of 154420432236 in words is "one hundred fifty-four billion, four hundred twenty million, four hundred thirty-two thousand, two hundred thirty-six".