356212406642 has 4 divisors (see below), whose sum is σ = 534318609966. Its totient is φ = 178106203320.

The previous prime is 356212406633. The next prime is 356212406647. The reversal of 356212406642 is 246604212653.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 343877860921 + 12334545721 = 586411^2 + 111061^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 356212406642.

It is not an unprimeable number, because it can be changed into a prime (356212406647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89053101659 + ... + 89053101662.

Almost surely, 2^356212406642 is an apocalyptic number.

356212406642 is a deficient number, since it is larger than the sum of its proper divisors (178106203324).

356212406642 is a wasteful number, since it uses less digits than its factorization.

356212406642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178106203323.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 356212406642 in words is "three hundred fifty-six billion, two hundred twelve million, four hundred six thousand, six hundred forty-two".