155440254322 has 8 divisors (see below), whose sum is σ = 234556551936. Its totient is φ = 77254737012.

The previous prime is 155440254271. The next prime is 155440254373. The reversal of 155440254322 is 223452044551.

It is an interprime number because it is at equal distance from previous prime (155440254271) and next prime (155440254373).

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 232694658 + ... + 232695325.

It is an arithmetic number, because the mean of its divisors is an integer number (29319568992).

Almost surely, 2^155440254322 is an apocalyptic number.

155440254322 is a deficient number, since it is larger than the sum of its proper divisors (79116297614).

155440254322 is a wasteful number, since it uses less digits than its factorization.

155440254322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465390152.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 155440254322 its reverse (223452044551), we get a palindrome (378892298873).

The spelling of 155440254322 in words is "one hundred fifty-five billion, four hundred forty million, two hundred fifty-four thousand, three hundred twenty-two".