154550522120000 has 140 divisors (see below), whose sum is σ = 388484868701556. Its totient is φ = 60973355520000.

The previous prime is 154550522119999. The next prime is 154550522120053. The reversal of 154550522120000 is 21225055451.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 90086066511424 + 64464455608576 = 9491368^2 + 8028976^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23544131 + ... + 29384130.

Almost surely, 2^{154550522120000} is an apocalyptic number.

154550522120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154550522120000 is an abundant number, since it is smaller than the sum of its proper divisors (233934346581556).

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

154550522120000 is an frugal number, since it uses more digits than its factorization.

154550522120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52928366 (or 52928341 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 154550522120000 its reverse (21225055451), we get a palindrome (154571747175451).

The spelling of 154550522120000 in words is "one hundred fifty-four trillion, five hundred fifty billion, five hundred twenty-two million, one hundred twenty thousand".