194119165517540 has 12 divisors (see below), whose sum is σ = 407650247586876. Its totient is φ = 77647666207008.

The previous prime is 194119165517521. The next prime is 194119165517549. The reversal of 194119165517540 is 45715561911491.

It can be written as a sum of positive squares in 2 ways, for example, as 66066042122404 + 128053123395136 = 8128102^2 + 11316056^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 194119165517540.

It is not an unprimeable number, because it can be changed into a prime (194119165517549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4852979137919 + ... + 4852979137958.

It is an arithmetic number, because the mean of its divisors is an integer number (33970853965573).

Almost surely, 2^{194119165517540} is an apocalyptic number.

194119165517540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194119165517540 is an abundant number, since it is smaller than the sum of its proper divisors (213531082069336).

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

194119165517540 is a wasteful number, since it uses less digits than its factorization.

194119165517540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705958275886 (or 9705958275884 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 59.

The spelling of 194119165517540 in words is "one hundred ninety-four trillion, one hundred nineteen billion, one hundred sixty-five million, five hundred seventeen thousand, five hundred forty".