206665151715948 has 48 divisors (see below), whose sum is σ = 482306994376704. Its totient is φ = 68875769788800.

The previous prime is 206665151715943. The next prime is 206665151715949. The reversal of 206665151715948 is 849517151566602.

It is not an unprimeable number, because it can be changed into a prime (206665151715943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1691129248 + ... + 1691251448.

It is an arithmetic number, because the mean of its divisors is an integer number (10048062382848).

Almost surely, 2^{206665151715948} is an apocalyptic number.

It is an amenable number.

206665151715948 is an abundant number, since it is smaller than the sum of its proper divisors (275641842660756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206665151715948 is a wasteful number, since it uses less digits than its factorization.

206665151715948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146862 (or 146860 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 66.

The spelling of 206665151715948 in words is "two hundred six trillion, six hundred sixty-five billion, one hundred fifty-one million, seven hundred fifteen thousand, nine hundred forty-eight".