197766696960 has 936 divisors, whose sum is σ = 827981140896. Its totient is φ = 45148078080.

The previous prime is 197766696949. The next prime is 197766696971. The reversal of 197766696960 is 69696667791.

It is an interprime number because it is at equal distance from previous prime (197766696949) and next prime (197766696971).

It is a super-2 number, since 2×197766696960² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 243854955 + ... + 243855765.

It is an arithmetic number, because the mean of its divisors is an integer number (884595236).

Almost surely, 2^197766696960 is an apocalyptic number.

197766696960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197766696960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413990570448).

197766696960 is an abundant number, since it is smaller than the sum of its proper divisors (630214443936).

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

197766696960 is an frugal number, since it uses more digits than its factorization.

197766696960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 277766496, while the sum is 72.

The spelling of 197766696960 in words is "one hundred ninety-seven billion, seven hundred sixty-six million, six hundred ninety-six thousand, nine hundred sixty".