20366145346 has 8 divisors (see below), whose sum is σ = 31602639420. Its totient is φ = 9831932208.

The previous prime is 20366145281. The next prime is 20366145377. The reversal of 20366145346 is 64354166302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20231933121 + 134212225 = 142239^2 + 11585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20366145299 and 20366145308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175570161 + ... + 175570276.

Almost surely, 2^20366145346 is an apocalyptic number.

20366145346 is a deficient number, since it is larger than the sum of its proper divisors (11236494074).

20366145346 is a wasteful number, since it uses less digits than its factorization.

20366145346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351140468.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 20366145346 in words is "twenty billion, three hundred sixty-six million, one hundred forty-five thousand, three hundred forty-six".