406356043646122 has 32 divisors (see below), whose sum is σ = 657604992867984. Its totient is φ = 187622458368000.

The previous prime is 406356043646083. The next prime is 406356043646123. The reversal of 406356043646122 is 221646340653604.

It can be written as a sum of positive squares in 8 ways, for example, as 248338548255121 + 158017495391001 = 15758761^2 + 12570501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 406356043646122.

It is not an unprimeable number, because it can be changed into a prime (406356043646123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243468403 + ... + 245131750.

Almost surely, 2^{406356043646122} is an apocalyptic number.

406356043646122 is a deficient number, since it is larger than the sum of its proper divisors (251248949221862).

406356043646122 is a wasteful number, since it uses less digits than its factorization.

406356043646122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488600634.

The product of its (nonzero) digits is 14929920, while the sum is 52.

The spelling of 406356043646122 in words is "four hundred six trillion, three hundred fifty-six billion, forty-three million, six hundred forty-six thousand, one hundred twenty-two".