2116155740 has 24 divisors (see below), whose sum is σ = 4444827072. Its totient is φ = 846290880.

The previous prime is 2116155731. The next prime is 2116155787. The reversal of 2116155740 is 475516112.

It is a junction number, because it is equal to n+sod(n) for n = 2116155697 and 2116155706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147485 + ... + 161195.

It is an arithmetic number, because the mean of its divisors is an integer number (185201128).

Almost surely, 2^2116155740 is an apocalyptic number.

2116155740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116155740 is an abundant number, since it is smaller than the sum of its proper divisors (2328671332).

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

2116155740 is a wasteful number, since it uses less digits than its factorization.

2116155740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21437 (or 21435 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 2116155740 is about 46001.6927949396. The cubic root of 2116155740 is about 1283.8547007745.

The spelling of 2116155740 in words is "two billion, one hundred sixteen million, one hundred fifty-five thousand, seven hundred forty".