145242335066 has 4 divisors (see below), whose sum is σ = 217863502602. Its totient is φ = 72621167532.

The previous prime is 145242335011. The next prime is 145242335071. The reversal of 145242335066 is 660533242541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660533242541 = 1697 ⋅389235853.

It can be written as a sum of positive squares in only one way, i.e., 96388516225 + 48853818841 = 310465^2 + 221029^2 .

It is a super-3 number, since 3×145242335066³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36310583765 + ... + 36310583768.

Almost surely, 2^145242335066 is an apocalyptic number.

145242335066 is a deficient number, since it is larger than the sum of its proper divisors (72621167536).

145242335066 is an equidigital number, since it uses as much as digits as its factorization.

145242335066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72621167535.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 145242335066 in words is "one hundred forty-five billion, two hundred forty-two million, three hundred thirty-five thousand, sixty-six".