145945618965 has 48 divisors (see below), whose sum is σ = 262543235136. Its totient is φ = 77777884800.

The previous prime is 145945618927. The next prime is 145945618967. The reversal of 145945618965 is 569816549541.

145945618965 is a `hidden beast` number, since 1 + 4 + 5 + 9 + 4 + 5 + 618 + 9 + 6 + 5 = 666.

It is not a de Polignac number, because 145945618965 - 2⁶ = 145945618901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145945618967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1559550 + ... + 1650480.

It is an arithmetic number, because the mean of its divisors is an integer number (5469650732).

Almost surely, 2^145945618965 is an apocalyptic number.

145945618965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145945618965 is a deficient number, since it is larger than the sum of its proper divisors (116597616171).

145945618965 is an equidigital number, since it uses as much as digits as its factorization.

145945618965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92272 (or 92260 counting only the distinct ones).

The product of its digits is 46656000, while the sum is 63.

The spelling of 145945618965 in words is "one hundred forty-five billion, nine hundred forty-five million, six hundred eighteen thousand, nine hundred sixty-five".