145555242555 has 64 divisors (see below), whose sum is σ = 248857804800. Its totient is φ = 72486005760.

The previous prime is 145555242523. The next prime is 145555242587. The reversal of 145555242555 is 555242555541.

It is an interprime number because it is at equal distance from previous prime (145555242523) and next prime (145555242587).

It is not a de Polignac number, because 145555242555 - 2⁵ = 145555242523 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28167582 + ... + 28172748.

It is an arithmetic number, because the mean of its divisors is an integer number (3888403200).

Almost surely, 2^145555242555 is an apocalyptic number.

145555242555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145555242555 is a deficient number, since it is larger than the sum of its proper divisors (103302562245).

145555242555 is a wasteful number, since it uses less digits than its factorization.

145555242555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324.

The product of its digits is 5000000, while the sum is 48.

The spelling of 145555242555 in words is "one hundred forty-five billion, five hundred fifty-five million, two hundred forty-two thousand, five hundred fifty-five".