198456129495 has 96 divisors (see below), whose sum is σ = 375502982400. Its totient is φ = 96371638272.

The previous prime is 198456129481. The next prime is 198456129551. The reversal of 198456129495 is 594921654891.

198456129495 is a `hidden beast` number, since 1 + 9 + 8 + 4 + 5 + 612 + 9 + 4 + 9 + 5 = 666.

It is not a de Polignac number, because 198456129495 - 2⁸ = 198456129239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93214591 + ... + 93216719.

It is an arithmetic number, because the mean of its divisors is an integer number (3911489400).

Almost surely, 2^198456129495 is an apocalyptic number.

198456129495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198456129495 is a deficient number, since it is larger than the sum of its proper divisors (177046852905).

198456129495 is a wasteful number, since it uses less digits than its factorization.

198456129495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4246 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The spelling of 198456129495 in words is "one hundred ninety-eight billion, four hundred fifty-six million, one hundred twenty-nine thousand, four hundred ninety-five".