11666334454 has 16 divisors (see below), whose sum is σ = 18209043648. Its totient is φ = 5601336832.

The previous prime is 11666334431. The next prime is 11666334461. The reversal of 11666334454 is 45443366611.

It is a super-2 number, since 2×11666334454² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11666334454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165867 + ... + 1175830.

It is an arithmetic number, because the mean of its divisors is an integer number (1138065228).

Almost surely, 2^11666334454 is an apocalyptic number.

11666334454 is a deficient number, since it is larger than the sum of its proper divisors (6542709194).

11666334454 is a wasteful number, since it uses less digits than its factorization.

11666334454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341799.

The product of its digits is 622080, while the sum is 43.

The spelling of 11666334454 in words is "eleven billion, six hundred sixty-six million, three hundred thirty-four thousand, four hundred fifty-four".