405020363156 has 6 divisors (see below), whose sum is σ = 708785635530. Its totient is φ = 202510181576.

The previous prime is 405020363101. The next prime is 405020363177. The reversal of 405020363156 is 651363020504.

It can be written as a sum of positive squares in only one way, i.e., 378397219600 + 26623143556 = 615140^2 + 163166^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50627545391 + ... + 50627545398.

It is an arithmetic number, because the mean of its divisors is an integer number (118130939255).

Almost surely, 2^405020363156 is an apocalyptic number.

It is an amenable number.

405020363156 is a deficient number, since it is larger than the sum of its proper divisors (303765272374).

405020363156 is a wasteful number, since it uses less digits than its factorization.

405020363156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101255090793 (or 101255090791 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 405020363156 in words is "four hundred five billion, twenty million, three hundred sixty-three thousand, one hundred fifty-six".