97181522668 has 24 divisors (see below), whose sum is σ = 178529218560. Its totient is φ = 46226308560.

The previous prime is 97181522657. The next prime is 97181522723. The reversal of 97181522668 is 86622518179.

It is a happy 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, 6634396 + ... + 6649027.

It is an arithmetic number, because the mean of its divisors is an integer number (7438717440).

Almost surely, 2^97181522668 is an apocalyptic number.

It is an amenable number.

97181522668 is a deficient number, since it is larger than the sum of its proper divisors (81347695892).

97181522668 is a wasteful number, since it uses less digits than its factorization.

97181522668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283517 (or 13283515 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The spelling of 97181522668 in words is "ninety-seven billion, one hundred eighty-one million, five hundred twenty-two thousand, six hundred sixty-eight".