1011516065 has 48 divisors (see below), whose sum is σ = 1503442944. Its totient is φ = 649152000.

The previous prime is 1011516059. The next prime is 1011516089. The reversal of 1011516065 is 5606151101.

It is not a de Polignac number, because 1011516065 - 2⁴ = 1011516049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 878240 + ... + 879390.

It is an arithmetic number, because the mean of its divisors is an integer number (31321728).

Almost surely, 2^1011516065 is an apocalyptic number.

It is an amenable number.

1011516065 is a deficient number, since it is larger than the sum of its proper divisors (491926879).

1011516065 is a wasteful number, since it uses less digits than its factorization.

1011516065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1011516065 is about 31804.3403484493. The cubic root of 1011516065 is about 1003.8240463627.

Adding to 1011516065 its reverse (5606151101), we get a palindrome (6617667166).

The spelling of 1011516065 in words is "one billion, eleven million, five hundred sixteen thousand, sixty-five".