145343605505 has 16 divisors (see below), whose sum is σ = 199337908224. Its totient is φ = 99659419200.

The previous prime is 145343605483. The next prime is 145343605541. The reversal of 145343605505 is 505506343541.

It is not a de Polignac number, because 145343605505 - 2⁶ = 145343605441 is a prime.

It is a super-2 number, since 2×145343605505² (a number of 23 digits) contains 22 as substring.

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, 743555 + ... + 918455.

It is an arithmetic number, because the mean of its divisors is an integer number (12458619264).

Almost surely, 2^145343605505 is an apocalyptic number.

It is an amenable number.

145343605505 is a deficient number, since it is larger than the sum of its proper divisors (53994302719).

145343605505 is a wasteful number, since it uses less digits than its factorization.

145343605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198656.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 145343605505 in words is "one hundred forty-five billion, three hundred forty-three million, six hundred five thousand, five hundred five".