197662046464 has 81 divisors (see below), whose sum is σ = 406044417681. Its totient is φ = 96031872000.

The previous prime is 197662046447. The next prime is 197662046507. The reversal of 197662046464 is 464640266791.

The square root of 197662046464 is 444592.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 176870713600 + 20791332864 = 420560^2 + 144192^2 .

It is a super-2 number, since 2×197662046464² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 263198089 + ... + 263198839.

Almost surely, 2^197662046464 is an apocalyptic number.

197662046464 is the 444592-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197662046464

197662046464 is an abundant number, since it is smaller than the sum of its proper divisors (208382371217).

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

197662046464 is an frugal number, since it uses more digits than its factorization.

197662046464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 197662046464 in words is "one hundred ninety-seven billion, six hundred sixty-two million, forty-six thousand, four hundred sixty-four".