197953613168 has 20 divisors (see below), whose sum is σ = 383573446008. Its totient is φ = 98966917440.

The previous prime is 197953613147. The next prime is 197953613173. The reversal of 197953613168 is 861316359791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451571 + ... + 774482.

Almost surely, 2^197953613168 is an apocalyptic number.

It is an amenable number.

197953613168 is a deficient number, since it is larger than the sum of its proper divisors (185619832840).

197953613168 is a wasteful number, since it uses less digits than its factorization.

197953613168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236152 (or 1236146 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The spelling of 197953613168 in words is "one hundred ninety-seven billion, nine hundred fifty-three million, six hundred thirteen thousand, one hundred sixty-eight".