1011611516 has 12 divisors (see below), whose sum is σ = 1794571632. Its totient is φ = 498876768.

The previous prime is 1011611473. The next prime is 1011611527. The reversal of 1011611516 is 6151161101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011611491 and 1011611500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731920 + ... + 1732503.

It is an arithmetic number, because the mean of its divisors is an integer number (149547636).

Almost surely, 2^1011611516 is an apocalyptic number.

It is an amenable number.

1011611516 is a deficient number, since it is larger than the sum of its proper divisors (782960116).

1011611516 is a wasteful number, since it uses less digits than its factorization.

1011611516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464500 (or 3464498 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 23.

The square root of 1011611516 is about 31805.8409101222. The cubic root of 1011611516 is about 1003.8556204189.

Adding to 1011611516 its reverse (6151161101), we get a palindrome (7162772617).

The spelling of 1011611516 in words is "one billion, eleven million, six hundred eleven thousand, five hundred sixteen".