1166499315501 has 16 divisors (see below), whose sum is σ = 1703362758720. Its totient is φ = 705678854400.

The previous prime is 1166499315467. The next prime is 1166499315503. The reversal of 1166499315501 is 1055139946611.

It is a happy number.

It is not a de Polignac number, because 1166499315501 - 2⁹ = 1166499314989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166499315503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253474300 + ... + 253478901.

It is an arithmetic number, because the mean of its divisors is an integer number (106460172420).

Almost surely, 2^{1166499315501} is an apocalyptic number.

It is an amenable number.

1166499315501 is a deficient number, since it is larger than the sum of its proper divisors (536863443219).

1166499315501 is a wasteful number, since it uses less digits than its factorization.

1166499315501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506953276.

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 1166499315501 in words is "one trillion, one hundred sixty-six billion, four hundred ninety-nine million, three hundred fifteen thousand, five hundred one".