691542222245196 has 96 divisors (see below), whose sum is σ = 1848608731200000. Its totient is φ = 197102106044928.

The previous prime is 691542222245191. The next prime is 691542222245219.

It is a happy number.

691542222245196 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×691542222245196² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (691542222245191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93211440 + ... + 100356648.

It is an arithmetic number, because the mean of its divisors is an integer number (19256340950000).

Almost surely, 2^{691542222245196} is an apocalyptic number.

It is an amenable number.

691542222245196 is an abundant number, since it is smaller than the sum of its proper divisors (1157066508954804).

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

691542222245196 is a wasteful number, since it uses less digits than its factorization.

691542222245196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148031 (or 7148029 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 60.

The spelling of 691542222245196 in words is "six hundred ninety-one trillion, five hundred forty-two billion, two hundred twenty-two million, two hundred forty-five thousand, one hundred ninety-six".