145345616066 has 32 divisors (see below), whose sum is σ = 255329988480. Its totient is φ = 60750518400.

The previous prime is 145345616033. The next prime is 145345616077. The reversal of 145345616066 is 660616543541.

It is a super-2 number, since 2×145345616066² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145345616066.

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, 1662740 + ... + 1747968.

It is an arithmetic number, because the mean of its divisors is an integer number (7979062140).

Almost surely, 2^145345616066 is an apocalyptic number.

145345616066 is a deficient number, since it is larger than the sum of its proper divisors (109984372414).

145345616066 is a wasteful number, since it uses less digits than its factorization.

145345616066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88250.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 145345616066 in words is "one hundred forty-five billion, three hundred forty-five million, six hundred sixteen thousand, sixty-six".