697150422164 has 18 divisors (see below), whose sum is σ = 1419199074090. Its totient is φ = 298778752272.

The previous prime is 697150422121. The next prime is 697150422167. The reversal of 697150422164 is 461224051796.

It can be written as a sum of positive squares in only one way, i.e., 692653378564 + 4497043600 = 832258^2 + 67060^2 .

It is a super-2 number, since 2×697150422164² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697150422167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1778444759 + ... + 1778445150.

It is an arithmetic number, because the mean of its divisors is an integer number (78844393005).

Almost surely, 2^697150422164 is an apocalyptic number.

It is an amenable number.

697150422164 is an abundant number, since it is smaller than the sum of its proper divisors (722048651926).

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

697150422164 is a wasteful number, since it uses less digits than its factorization.

697150422164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556889927 (or 3556889918 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 697150422164 in words is "six hundred ninety-seven billion, one hundred fifty million, four hundred twenty-two thousand, one hundred sixty-four".