206225316450004 has 6 divisors (see below), whose sum is σ = 360894303787514. Its totient is φ = 103112658225000.

The previous prime is 206225316449969. The next prime is 206225316450107. The reversal of 206225316450004 is 400054613522602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 197871204888900 + 8354111561104 = 14066670^2 + 2890348^2 .

It is a super-2 number, since 2×206225316450004² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25778164556247 + ... + 25778164556254.

Almost surely, 2^{206225316450004} is an apocalyptic number.

It is an amenable number.

206225316450004 is a deficient number, since it is larger than the sum of its proper divisors (154668987337510).

206225316450004 is a wasteful number, since it uses less digits than its factorization.

206225316450004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51556329112505 (or 51556329112503 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 206225316450004 its reverse (400054613522602), we get a palindrome (606279929972606).

The spelling of 206225316450004 in words is "two hundred six trillion, two hundred twenty-five billion, three hundred sixteen million, four hundred fifty thousand, four".