145504241555 has 8 divisors (see below), whose sum is σ = 176333853744. Its totient is φ = 115250884000.

The previous prime is 145504241549. The next prime is 145504241557. The reversal of 145504241555 is 555142405541.

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

It is a de Polignac number, because none of the positive numbers 2^k-145504241555 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145504241557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144063101 + ... + 144064110.

It is an arithmetic number, because the mean of its divisors is an integer number (22041731718).

Almost surely, 2^145504241555 is an apocalyptic number.

145504241555 is a deficient number, since it is larger than the sum of its proper divisors (30829612189).

145504241555 is a wasteful number, since it uses less digits than its factorization.

145504241555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288127317.

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 145504241555 in words is "one hundred forty-five billion, five hundred four million, two hundred forty-one thousand, five hundred fifty-five".