178396146045 has 48 divisors (see below), whose sum is σ = 335127370032. Its totient is φ = 87266350080.

The previous prime is 178396146041. The next prime is 178396146083. The reversal of 178396146045 is 540641693871.

178396146045 is a `hidden beast` number, since 1 + 7 + 83 + 9 + 61 + 460 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 47147173956 + 131248972089 = 217134^2 + 362283^2 .

It is not a de Polignac number, because 178396146045 - 2² = 178396146041 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 178396145982 and 178396146000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (178396146041) 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, 879336 + ... + 1063025.

It is an arithmetic number, because the mean of its divisors is an integer number (6981820209).

Almost surely, 2^178396146045 is an apocalyptic number.

178396146045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

178396146045 is a deficient number, since it is larger than the sum of its proper divisors (156731223987).

178396146045 is a wasteful number, since it uses less digits than its factorization.

178396146045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942542 (or 1942539 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 178396146045 in words is "one hundred seventy-eight billion, three hundred ninety-six million, one hundred forty-six thousand, forty-five".