154220011240 has 64 divisors (see below), whose sum is σ = 362310278400. Its totient is φ = 58968678912.

The previous prime is 154220011237. The next prime is 154220011259. The reversal of 154220011240 is 42110022451.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428189 + ... + 1532371.

It is an arithmetic number, because the mean of its divisors is an integer number (5661098100).

Almost surely, 2^154220011240 is an apocalyptic number.

154220011240 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 154220011240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181155139200).

154220011240 is an abundant number, since it is smaller than the sum of its proper divisors (208090267160).

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

154220011240 is a wasteful number, since it uses less digits than its factorization.

154220011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105826 (or 105822 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 154220011240 its reverse (42110022451), we get a palindrome (196330033691).

The spelling of 154220011240 in words is "one hundred fifty-four billion, two hundred twenty million, eleven thousand, two hundred forty".