2515940066 has 8 divisors (see below), whose sum is σ = 3904045020. Its totient is φ = 1214591728.

The previous prime is 2515940057. The next prime is 2515940093. The reversal of 2515940066 is 6600495152.

It can be written as a sum of positive squares in 2 ways, for example, as 2229822841 + 286117225 = 47221^2 + 16915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21689081 + ... + 21689196.

Almost surely, 2^2515940066 is an apocalyptic number.

2515940066 is a deficient number, since it is larger than the sum of its proper divisors (1388104954).

2515940066 is a wasteful number, since it uses less digits than its factorization.

2515940066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43378308.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 2515940066 is about 50159.1473811109. The cubic root of 2515940066 is about 1360.0872323660.

The spelling of 2515940066 in words is "two billion, five hundred fifteen million, nine hundred forty thousand, sixty-six".