194397144415916 has 12 divisors (see below), whose sum is σ = 366363849091632. Its totient is φ = 89721758961168.

The previous prime is 194397144415897. The next prime is 194397144415979. The reversal of 194397144415916 is 619514441793491.

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, 1869203311640 + ... + 1869203311743.

It is an arithmetic number, because the mean of its divisors is an integer number (30530320757636).

Almost surely, 2^{194397144415916} is an apocalyptic number.

It is an amenable number.

194397144415916 is a deficient number, since it is larger than the sum of its proper divisors (171966704675716).

194397144415916 is a wasteful number, since it uses less digits than its factorization.

194397144415916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738406623400 (or 3738406623398 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 68.

The spelling of 194397144415916 in words is "one hundred ninety-four trillion, three hundred ninety-seven billion, one hundred forty-four million, four hundred fifteen thousand, nine hundred sixteen".