662891062898 has 8 divisors (see below), whose sum is σ = 994353941100. Its totient is φ = 331439749200.

The previous prime is 662891062891. The next prime is 662891062907. The reversal of 662891062898 is 898260198266.

It can be written as a sum of positive squares in 2 ways, for example, as 660541431169 + 2349631729 = 812737^2 + 48473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×662891062898² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (662891062891) 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, 2746373 + ... + 2977976.

Almost surely, 2^662891062898 is an apocalyptic number.

662891062898 is a deficient number, since it is larger than the sum of its proper divisors (331462878202).

662891062898 is a wasteful number, since it uses less digits than its factorization.

662891062898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782252.

The product of its (nonzero) digits is 35831808, while the sum is 65.

The spelling of 662891062898 in words is "six hundred sixty-two billion, eight hundred ninety-one million, sixty-two thousand, eight hundred ninety-eight".