154512780552 has 672 divisors, whose sum is σ = 510768518400. Its totient is φ = 43626345984.

The previous prime is 154512780529. The next prime is 154512780553. The reversal of 154512780552 is 255087215451.

It is a happy number.

154512780552 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 12 + 7 + 80 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 154512780498 and 154512780507.

It is not an unprimeable number, because it can be changed into a prime (154512780553) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 692882313 + ... + 692882535.

It is an arithmetic number, because the mean of its divisors is an integer number (760072200).

Almost surely, 2^154512780552 is an apocalyptic number.

154512780552 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 154512780552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255384259200).

154512780552 is an abundant number, since it is smaller than the sum of its proper divisors (356255737848).

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

154512780552 is a wasteful number, since it uses less digits than its factorization.

154512780552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 45.

The spelling of 154512780552 in words is "one hundred fifty-four billion, five hundred twelve million, seven hundred eighty thousand, five hundred fifty-two".