155105313442 has 32 divisors (see below), whose sum is σ = 237621600000. Its totient is φ = 75916853376.

The previous prime is 155105313437. The next prime is 155105313527. The reversal of 155105313442 is 244313501551.

155105313442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155105313398 and 155105313407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13389609 + ... + 13401187.

It is an arithmetic number, because the mean of its divisors is an integer number (7425675000).

Almost surely, 2^155105313442 is an apocalyptic number.

155105313442 is a deficient number, since it is larger than the sum of its proper divisors (82516286558).

155105313442 is a wasteful number, since it uses less digits than its factorization.

155105313442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 155105313442 its reverse (244313501551), we get a palindrome (399418814993).

The spelling of 155105313442 in words is "one hundred fifty-five billion, one hundred five million, three hundred thirteen thousand, four hundred forty-two".