44521035405666 has 16 divisors (see below), whose sum is σ = 89044824425088. Its totient is φ = 14839886199600.

The previous prime is 44521035405661. The next prime is 44521035405677. The reversal of 44521035405666 is 66650453012544.

It is not an unprimeable number, because it can be changed into a prime (44521035405661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114523690 + ... + 114911781.

It is an arithmetic number, because the mean of its divisors is an integer number (5565301526568).

Almost surely, 2^{44521035405666} is an apocalyptic number.

44521035405666 is an abundant number, since it is smaller than the sum of its proper divisors (44523789019422).

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

44521035405666 is a wasteful number, since it uses less digits than its factorization.

44521035405666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229467817.

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 44521035405666 in words is "forty-four trillion, five hundred twenty-one billion, thirty-five million, four hundred five thousand, six hundred sixty-six".