206320204602451 has 4 divisors (see below), whose sum is σ = 206509315698504. Its totient is φ = 206131093506400.

The previous prime is 206320204602437. The next prime is 206320204602461. The reversal of 206320204602451 is 154206402023602.

206320204602451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 206320204602451 - 2⁵ = 206320204602419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206320204602451.

It is not an unprimeable number, because it can be changed into a prime (206320204602431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94555546390 + ... + 94555548571.

It is an arithmetic number, because the mean of its divisors is an integer number (51627328924626).

Almost surely, 2^{206320204602451} is an apocalyptic number.

206320204602451 is a deficient number, since it is larger than the sum of its proper divisors (189111096053).

206320204602451 is a wasteful number, since it uses less digits than its factorization.

206320204602451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189111096052.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 206320204602451 in words is "two hundred six trillion, three hundred twenty billion, two hundred four million, six hundred two thousand, four hundred fifty-one".