206795554378 has 16 divisors (see below), whose sum is σ = 354517130880. Its totient is φ = 88624049616.

The previous prime is 206795554321. The next prime is 206795554379. The reversal of 206795554378 is 873455597602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (206795554379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318643 + ... + 717721.

It is an arithmetic number, because the mean of its divisors is an integer number (22157320680).

Almost surely, 2^206795554378 is an apocalyptic number.

206795554378 is a deficient number, since it is larger than the sum of its proper divisors (147721576502).

206795554378 is a wasteful number, since it uses less digits than its factorization.

206795554378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436101.

The product of its (nonzero) digits is 63504000, while the sum is 61.

The spelling of 206795554378 in words is "two hundred six billion, seven hundred ninety-five million, five hundred fifty-four thousand, three hundred seventy-eight".