690217911716 has 24 divisors (see below), whose sum is σ = 1209170967480. Its totient is φ = 344740695552.

The previous prime is 690217911697. The next prime is 690217911731. The reversal of 690217911716 is 617119712096.

It can be written as a sum of positive squares in 4 ways, for example, as 5703270400 + 684514641316 = 75520^2 + 827354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14682986 + ... + 14729918.

It is an arithmetic number, because the mean of its divisors is an integer number (50382123645).

Almost surely, 2^690217911716 is an apocalyptic number.

It is an amenable number.

690217911716 is a deficient number, since it is larger than the sum of its proper divisors (518953055764).

690217911716 is a wasteful number, since it uses less digits than its factorization.

690217911716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50783 (or 50781 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 50.

The spelling of 690217911716 in words is "six hundred ninety billion, two hundred seventeen million, nine hundred eleven thousand, seven hundred sixteen".