11166478761940 has 24 divisors (see below), whose sum is σ = 23547720913920. Its totient is φ = 4447902835488.

The previous prime is 11166478761833. The next prime is 11166478761979. The reversal of 11166478761940 is 4916787466111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168036932 + ... + 1168046491.

It is an arithmetic number, because the mean of its divisors is an integer number (981155038080).

Almost surely, 2^{11166478761940} is an apocalyptic number.

11166478761940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11166478761940 is an abundant number, since it is smaller than the sum of its proper divisors (12381242151980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11166478761940 is a wasteful number, since it uses less digits than its factorization.

11166478761940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336083671 (or 2336083669 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 11166478761940 in words is "eleven trillion, one hundred sixty-six billion, four hundred seventy-eight million, seven hundred sixty-one thousand, nine hundred forty".