154402122432 has 112 divisors (see below), whose sum is σ = 423278576352. Its totient is φ = 49632952320.

The previous prime is 154402122403. The next prime is 154402122449. The reversal of 154402122432 is 234221204451.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 154402122432.

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, 706582 + ... + 898922.

Almost surely, 2^154402122432 is an apocalyptic number.

154402122432 is a gapful number since it is divisible by the number (12) 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 154402122432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211639288176).

154402122432 is an abundant number, since it is smaller than the sum of its proper divisors (268876453920).

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

154402122432 is a wasteful number, since it uses less digits than its factorization.

154402122432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192506 (or 192496 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 154402122432 its reverse (234221204451), we get a palindrome (388623326883).

The spelling of 154402122432 in words is "one hundred fifty-four billion, four hundred two million, one hundred twenty-two thousand, four hundred thirty-two".