154352222552240 has 80 divisors (see below), whose sum is σ = 380731218309120. Its totient is φ = 58030806516480.

The previous prime is 154352222552219. The next prime is 154352222552243. The reversal of 154352222552240 is 42255222253451.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 154352222552191 and 154352222552200.

It is not an unprimeable number, because it can be changed into a prime (154352222552243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399600326 + ... + 399986405.

It is an arithmetic number, because the mean of its divisors is an integer number (4759140228864).

Almost surely, 2^{154352222552240} is an apocalyptic number.

154352222552240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154352222552240 is an abundant number, since it is smaller than the sum of its proper divisors (226378995756880).

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

154352222552240 is a wasteful number, since it uses less digits than its factorization.

154352222552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799586890 (or 799586884 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 44.

The spelling of 154352222552240 in words is "one hundred fifty-four trillion, three hundred fifty-two billion, two hundred twenty-two million, five hundred fifty-two thousand, two hundred forty".