2540165512 has 32 divisors (see below), whose sum is σ = 4789730880. Its totient is φ = 1262923840.

The previous prime is 2540165501. The next prime is 2540165519. The reversal of 2540165512 is 2155610452.

It is not an unprimeable number, because it can be changed into a prime (2540165519) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1979223 + ... + 1980505.

It is an arithmetic number, because the mean of its divisors is an integer number (149679090).

Almost surely, 2^2540165512 is an apocalyptic number.

It is an amenable number.

2540165512 is a deficient number, since it is larger than the sum of its proper divisors (2249565368).

2540165512 is a wasteful number, since it uses less digits than its factorization.

2540165512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2540165512 is about 50400.0546825100. The cubic root of 2540165512 is about 1364.4386250849.

Adding to 2540165512 its reverse (2155610452), we get a palindrome (4695775964).

The spelling of 2540165512 in words is "two billion, five hundred forty million, one hundred sixty-five thousand, five hundred twelve".