197969860916 has 24 divisors (see below), whose sum is σ = 370659713760. Its totient is φ = 92237896800.

The previous prime is 197969860909. The next prime is 197969860931. The reversal of 197969860916 is 619068969791.

It is a super-2 number, since 2×197969860916² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 197969860916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21346730 + ... + 21356001.

It is an arithmetic number, because the mean of its divisors is an integer number (15444154740).

Almost surely, 2^197969860916 is an apocalyptic number.

It is an amenable number.

197969860916 is a deficient number, since it is larger than the sum of its proper divisors (172689852844).

197969860916 is a wasteful number, since it uses less digits than its factorization.

197969860916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42702815 (or 42702813 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 71.

The spelling of 197969860916 in words is "one hundred ninety-seven billion, nine hundred sixty-nine million, eight hundred sixty thousand, nine hundred sixteen".