2051658960 has 80 divisors (see below), whose sum is σ = 6849394944. Its totient is φ = 505022976.

The previous prime is 2051658953. The next prime is 2051658977. The reversal of 2051658960 is 698561502.

It is a tau number, because it is divible by the number of its divisors (80).

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, 325672 + ... + 331911.

Almost surely, 2^2051658960 is an apocalyptic number.

2051658960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051658960 is an abundant number, since it is smaller than the sum of its proper divisors (4797735984).

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

2051658960 is a wasteful number, since it uses less digits than its factorization.

2051658960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657612 (or 657606 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 2051658960 is about 45295.2421342463. The cubic root of 2051658960 is about 1270.6766724835.

The spelling of 2051658960 in words is "two billion, fifty-one million, six hundred fifty-eight thousand, nine hundred sixty".