11766587620516 has 9 divisors (see below), whose sum is σ = 20591540341771. Its totient is φ = 5883290380012.

The previous prime is 11766587620433. The next prime is 11766587620603. The reversal of 11766587620516 is 61502678566711.

The square root of 11766587620516 is 3430246.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6002931 + ... + 7718053.

Almost surely, 2^{11766587620516} is an apocalyptic number.

11766587620516 is the 3430246-th square number.

It is an amenable number.

11766587620516 is a deficient number, since it is larger than the sum of its proper divisors (8824952721255).

11766587620516 is an frugal number, since it uses more digits than its factorization.

11766587620516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430250 (or 1715125 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 11766587620516 in words is "eleven trillion, seven hundred sixty-six billion, five hundred eighty-seven million, six hundred twenty thousand, five hundred sixteen".