154642231342222 has 32 divisors (see below), whose sum is σ = 256561208128512. Its totient is φ = 69443517798144.

The previous prime is 154642231342219. The next prime is 154642231342223. The reversal of 154642231342222 is 222243132246451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154642231342223) 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, 85670418 + ... + 87456874.

It is an arithmetic number, because the mean of its divisors is an integer number (8017537754016).

Almost surely, 2^{154642231342222} is an apocalyptic number.

154642231342222 is a deficient number, since it is larger than the sum of its proper divisors (101918976786290).

154642231342222 is a wasteful number, since it uses less digits than its factorization.

154642231342222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876492.

The product of its digits is 1105920, while the sum is 43.

Adding to 154642231342222 its reverse (222243132246451), we get a palindrome (376885363588673).

The spelling of 154642231342222 in words is "one hundred fifty-four trillion, six hundred forty-two billion, two hundred thirty-one million, three hundred forty-two thousand, two hundred twenty-two".