10511413665 has 16 divisors (see below), whose sum is σ = 16819997568. Its totient is φ = 5605508736.

The previous prime is 10511413613. The next prime is 10511413687. The reversal of 10511413665 is 56631411501.

It is not a de Polignac number, because 10511413665 - 2¹⁰ = 10511412641 is a prime.

It is a super-2 number, since 2×10511413665² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142509 + ... + 203301.

It is an arithmetic number, because the mean of its divisors is an integer number (1051249848).

Almost surely, 2^10511413665 is an apocalyptic number.

10511413665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10511413665 is a deficient number, since it is larger than the sum of its proper divisors (6308583903).

10511413665 is a wasteful number, since it uses less digits than its factorization.

10511413665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72328.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 10511413665 in words is "ten billion, five hundred eleven million, four hundred thirteen thousand, six hundred sixty-five".