11666532651411 has 32 divisors (see below), whose sum is σ = 17567118259200. Its totient is φ = 6821965230080.

The previous prime is 11666532651359. The next prime is 11666532651427. The reversal of 11666532651411 is 11415623566611.

It is a de Polignac number, because none of the positive numbers 2^k-11666532651411 is a prime.

It is a super-2 number, since 2×11666532651411² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666532651461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2977611 + ... + 5674436.

It is an arithmetic number, because the mean of its divisors is an integer number (548972445600).

Almost surely, 2^{11666532651411} is an apocalyptic number.

11666532651411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11666532651411 is a deficient number, since it is larger than the sum of its proper divisors (5900585607789).

11666532651411 is a wasteful number, since it uses less digits than its factorization.

11666532651411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653499.

The product of its digits is 777600, while the sum is 48.

The spelling of 11666532651411 in words is "eleven trillion, six hundred sixty-six billion, five hundred thirty-two million, six hundred fifty-one thousand, four hundred eleven".