155510354420123 has 12 divisors (see below), whose sum is σ = 164368431684240. Its totient is φ = 146953291570512.

The previous prime is 155510354420111. The next prime is 155510354420167. The reversal of 155510354420123 is 321024453015551.

It is not a de Polignac number, because 155510354420123 - 2²² = 155510350225819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155510354420623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213703711 + ... + 1213831832.

It is an arithmetic number, because the mean of its divisors is an integer number (13697369307020).

Almost surely, 2^{155510354420123} is an apocalyptic number.

155510354420123 is a deficient number, since it is larger than the sum of its proper divisors (8858077264117).

155510354420123 is an equidigital number, since it uses as much as digits as its factorization.

155510354420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427535666 (or 2427535619 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 155510354420123 in words is "one hundred fifty-five trillion, five hundred ten billion, three hundred fifty-four million, four hundred twenty thousand, one hundred twenty-three".