13955005998 has 32 divisors (see below), whose sum is σ = 31016437920. Its totient is φ = 4650871680.

The previous prime is 13955005963. The next prime is 13955006003. The reversal of 13955005998 is 89950055931.

It is a happy number.

13955005998 is a `hidden beast` number, since 1 + 39 + 550 + 0 + 59 + 9 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354838 + ... + 392198.

It is an arithmetic number, because the mean of its divisors is an integer number (969263685).

Almost surely, 2^13955005998 is an apocalyptic number.

13955005998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13955005998 is an abundant number, since it is smaller than the sum of its proper divisors (17061431922).

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

13955005998 is a wasteful number, since it uses less digits than its factorization.

13955005998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44289 (or 44283 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 54.

The spelling of 13955005998 in words is "thirteen billion, nine hundred fifty-five million, five thousand, nine hundred ninety-eight".