697223180675556 has 144 divisors (see below), whose sum is σ = 1840127003723008. Its totient is φ = 222371626579200.

The previous prime is 697223180675503. The next prime is 697223180675587. The reversal of 697223180675556 is 655576081322796.

697223180675556 is a `hidden beast` number, since 6 + 9 + 7 + 2 + 2 + 3 + 1 + 8 + 0 + 67 + 5 + 556 = 666.

697223180675556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×697223180675556³ (a number of 46 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 377957961 + ... + 379798191.

Almost surely, 2^{697223180675556} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697223180675556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920063501861504).

697223180675556 is an abundant number, since it is smaller than the sum of its proper divisors (1142903823047452).

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

697223180675556 is a wasteful number, since it uses less digits than its factorization.

697223180675556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845002 (or 1844997 counting only the distinct ones).

The product of its (nonzero) digits is 1143072000, while the sum is 72.

The spelling of 697223180675556 in words is "six hundred ninety-seven trillion, two hundred twenty-three billion, one hundred eighty million, six hundred seventy-five thousand, five hundred fifty-six".