1951117160 has 16 divisors (see below), whose sum is σ = 4390013700. Its totient is φ = 780446848.

The previous prime is 1951117159. The next prime is 1951117199. The reversal of 1951117160 is 617111591.

It can be written as a sum of positive squares in 2 ways, for example, as 1565151844 + 385965316 = 39562^2 + 19646^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24388925 + ... + 24389004.

Almost surely, 2^1951117160 is an apocalyptic number.

1951117160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1951117160 is an abundant number, since it is smaller than the sum of its proper divisors (2438896540).

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

1951117160 is a wasteful number, since it uses less digits than its factorization.

1951117160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48777940 (or 48777936 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 32.

The square root of 1951117160 is about 44171.4518665620. The cubic root of 1951117160 is about 1249.5715139365.

The spelling of 1951117160 in words is "one billion, nine hundred fifty-one million, one hundred seventeen thousand, one hundred sixty".