10665001515 has 32 divisors (see below), whose sum is σ = 19505594880. Its totient is φ = 4874459904.

The previous prime is 10665001507. The next prime is 10665001553. The reversal of 10665001515 is 51510056601.

It is not a de Polignac number, because 10665001515 - 2³ = 10665001507 is a prime.

It is a super-2 number, since 2×10665001515² (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 31 ways as a sum of consecutive naturals, for example, 988671 + ... + 999399.

It is an arithmetic number, because the mean of its divisors is an integer number (609549840).

Almost surely, 2^10665001515 is an apocalyptic number.

10665001515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10665001515 is a deficient number, since it is larger than the sum of its proper divisors (8840593365).

10665001515 is a wasteful number, since it uses less digits than its factorization.

10665001515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 10665001515 in words is "ten billion, six hundred sixty-five million, one thousand, five hundred fifteen".