154339540992 has 896 divisors, whose sum is σ = 577622344320. Its totient is φ = 40131624960.

The previous prime is 154339540981. The next prime is 154339540997. The reversal of 154339540992 is 299045933451.

154339540992 is a `hidden beast` number, since 1 + 5 + 4 + 3 + 3 + 9 + 540 + 9 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (154339540997) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2173796317 + ... + 2173796387.

It is an arithmetic number, because the mean of its divisors is an integer number (644667795).

Almost surely, 2^154339540992 is an apocalyptic number.

154339540992 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 154339540992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288811172160).

154339540992 is an abundant number, since it is smaller than the sum of its proper divisors (423282803328).

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

154339540992 is an frugal number, since it uses more digits than its factorization.

154339540992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 154339540992 in words is "one hundred fifty-four billion, three hundred thirty-nine million, five hundred forty thousand, nine hundred ninety-two".