198956148408 has 96 divisors (see below), whose sum is σ = 567344044800. Its totient is φ = 62812252224.

The previous prime is 198956148397. The next prime is 198956148409. The reversal of 198956148408 is 804841659891.

198956148408 is a `hidden beast` number, since 1 + 9 + 8 + 9 + 5 + 614 + 8 + 4 + 0 + 8 = 666.

It is a super-2 number, since 2×198956148408² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198956148409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6089091 + ... + 6121677.

It is an arithmetic number, because the mean of its divisors is an integer number (5909833800).

Almost surely, 2^198956148408 is an apocalyptic number.

198956148408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

198956148408 is an abundant number, since it is smaller than the sum of its proper divisors (368387896392).

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

198956148408 is a wasteful number, since it uses less digits than its factorization.

198956148408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37081 (or 37074 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 63.

The spelling of 198956148408 in words is "one hundred ninety-eight billion, nine hundred fifty-six million, one hundred forty-eight thousand, four hundred eight".