414045021561 has 4 divisors (see below), whose sum is σ = 552060028752. Its totient is φ = 276030014372.

The previous prime is 414045021539. The next prime is 414045021647. The reversal of 414045021561 is 165120540414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 414045021561 - 2⁶ = 414045021497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (414045025561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69007503591 + ... + 69007503596.

It is an arithmetic number, because the mean of its divisors is an integer number (138015007188).

Almost surely, 2^414045021561 is an apocalyptic number.

It is an amenable number.

414045021561 is a deficient number, since it is larger than the sum of its proper divisors (138015007191).

414045021561 is a wasteful number, since it uses less digits than its factorization.

414045021561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138015007190.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 414045021561 its reverse (165120540414), we get a palindrome (579165561975).

The spelling of 414045021561 in words is "four hundred fourteen billion, forty-five million, twenty-one thousand, five hundred sixty-one".