198316035478 has 16 divisors (see below), whose sum is σ = 335707396560. Its totient is φ = 87035250400.

The previous prime is 198316035469. The next prime is 198316035481. The reversal of 198316035478 is 874530613891.

198316035478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198316035478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155419453 + ... + 155420728.

It is an arithmetic number, because the mean of its divisors is an integer number (20981712285).

Almost surely, 2^198316035478 is an apocalyptic number.

198316035478 is a deficient number, since it is larger than the sum of its proper divisors (137391361082).

198316035478 is a wasteful number, since it uses less digits than its factorization.

198316035478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310840223.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 198316035478 in words is "one hundred ninety-eight billion, three hundred sixteen million, thirty-five thousand, four hundred seventy-eight".