1516138611 has 32 divisors (see below), whose sum is σ = 2305040640. Its totient is φ = 878719104.

The previous prime is 1516138597. The next prime is 1516138619. The reversal of 1516138611 is 1168316151.

It is not a de Polignac number, because 1516138611 - 2¹³ = 1516130419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1516138619) 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 31 ways as a sum of consecutive naturals, for example, 122280 + ... + 134106.

It is an arithmetic number, because the mean of its divisors is an integer number (72032520).

Almost surely, 2^1516138611 is an apocalyptic number.

1516138611 is a deficient number, since it is larger than the sum of its proper divisors (788902029).

1516138611 is a wasteful number, since it uses less digits than its factorization.

1516138611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12035.

The product of its digits is 4320, while the sum is 33.

The square root of 1516138611 is about 38937.6246193832. The cubic root of 1516138611 is about 1148.8049617404.

The spelling of 1516138611 in words is "one billion, five hundred sixteen million, one hundred thirty-eight thousand, six hundred eleven".