10661501516 has 12 divisors (see below), whose sum is σ = 19755135288. Its totient is φ = 5017177152.

The previous prime is 10661501491. The next prime is 10661501531. The reversal of 10661501516 is 61510516601.

It is a super-2 number, since 2×10661501516² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78393326 + ... + 78393461.

It is an arithmetic number, because the mean of its divisors is an integer number (1646261274).

Almost surely, 2^10661501516 is an apocalyptic number.

It is an amenable number.

10661501516 is a deficient number, since it is larger than the sum of its proper divisors (9093633772).

10661501516 is a wasteful number, since it uses less digits than its factorization.

10661501516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156786808 (or 156786806 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 10661501516 in words is "ten billion, six hundred sixty-one million, five hundred one thousand, five hundred sixteen".