2198950551 has 16 divisors (see below), whose sum is σ = 3723091200. Its totient is φ = 1256543064.

The previous prime is 2198950529. The next prime is 2198950571. The reversal of 2198950551 is 1550598912.

2198950551 is a `hidden beast` number, since 2 + 1 + 9 + 8 + 95 + 0 + 551 = 666.

It is not a de Polignac number, because 2198950551 - 2⁷ = 2198950423 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2198950497 and 2198950506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198950511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5817141 + ... + 5817518.

It is an arithmetic number, because the mean of its divisors is an integer number (232693200).

Almost surely, 2^2198950551 is an apocalyptic number.

2198950551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2198950551 is a deficient number, since it is larger than the sum of its proper divisors (1524140649).

2198950551 is a wasteful number, since it uses less digits than its factorization.

2198950551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11634675 (or 11634669 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The square root of 2198950551 is about 46892.9690998555. The cubic root of 2198950551 is about 1300.3846102634.

The spelling of 2198950551 in words is "two billion, one hundred ninety-eight million, nine hundred fifty thousand, five hundred fifty-one".