145305221174982 has 96 divisors (see below), whose sum is σ = 349981226824320. Its totient is φ = 43197422352000.

The previous prime is 145305221174951. The next prime is 145305221174999. The reversal of 145305221174982 is 289471122503541.

145305221174982 is a `hidden beast` number, since 1 + 4 + 5 + 30 + 5 + 2 + 2 + 117 + 498 + 2 = 666.

It is a super-2 number, since 2×145305221174982² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6930519 + ... + 18402242.

It is an arithmetic number, because the mean of its divisors is an integer number (3645637779420).

Almost surely, 2^{145305221174982} is an apocalyptic number.

145305221174982 is an abundant number, since it is smaller than the sum of its proper divisors (204676005649338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145305221174982 is a wasteful number, since it uses less digits than its factorization.

145305221174982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25333330 (or 25333327 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 145305221174982 in words is "one hundred forty-five trillion, three hundred five billion, two hundred twenty-one million, one hundred seventy-four thousand, nine hundred eighty-two".