1466557421241 has 32 divisors (see below), whose sum is σ = 2255693561856. Its totient is φ = 839171664000.

The previous prime is 1466557421237. The next prime is 1466557421249. The reversal of 1466557421241 is 1421247556641.

It is a happy number.

It is not a de Polignac number, because 1466557421241 - 2² = 1466557421237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1466557421249) 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, 17440801 + ... + 17524686.

It is an arithmetic number, because the mean of its divisors is an integer number (70490423808).

Almost surely, 2^{1466557421241} is an apocalyptic number.

1466557421241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1466557421241 is a deficient number, since it is larger than the sum of its proper divisors (789136140615).

1466557421241 is a wasteful number, since it uses less digits than its factorization.

1466557421241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34965573.

The product of its digits is 1612800, while the sum is 48.

The spelling of 1466557421241 in words is "one trillion, four hundred sixty-six billion, five hundred fifty-seven million, four hundred twenty-one thousand, two hundred forty-one".