2159790516 has 36 divisors (see below), whose sum is σ = 5879431012. Its totient is φ = 664550784.

The previous prime is 2159790511. The next prime is 2159790527. The reversal of 2159790516 is 6150979512.

2159790516 is a `hidden beast` number, since 2 + 1 + 597 + 9 + 0 + 51 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1274490000 + 885300516 = 35700^2 + 29754^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159790511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2307001 + ... + 2307936.

Almost surely, 2^2159790516 is an apocalyptic number.

2159790516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2159790516 is an abundant number, since it is smaller than the sum of its proper divisors (3719640496).

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

2159790516 is a wasteful number, since it uses less digits than its factorization.

2159790516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614960 (or 4614955 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The square root of 2159790516 is about 46473.5464108346. The cubic root of 2159790516 is about 1292.6190238166.

The spelling of 2159790516 in words is "two billion, one hundred fifty-nine million, seven hundred ninety thousand, five hundred sixteen".