2116539140 has 12 divisors (see below), whose sum is σ = 4444732236. Its totient is φ = 846615648.

The previous prime is 2116539121. The next prime is 2116539149. The reversal of 2116539140 is 419356112.

It can be written as a sum of positive squares in 2 ways, for example, as 1365450304 + 751088836 = 36952^2 + 27406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2116539097 and 2116539106.

It is not an unprimeable number, because it can be changed into a prime (2116539149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52913459 + ... + 52913498.

It is an arithmetic number, because the mean of its divisors is an integer number (370394353).

Almost surely, 2^2116539140 is an apocalyptic number.

2116539140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116539140 is an abundant number, since it is smaller than the sum of its proper divisors (2328193096).

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

2116539140 is a wasteful number, since it uses less digits than its factorization.

2116539140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105826966 (or 105826964 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2116539140 is about 46005.8598441546. The cubic root of 2116539140 is about 1283.9322313265.

The spelling of 2116539140 in words is "two billion, one hundred sixteen million, five hundred thirty-nine thousand, one hundred forty".