445746434146661 has 8 divisors (see below), whose sum is σ = 465144056421504. Its totient is φ = 426350257082640.

The previous prime is 445746434146603. The next prime is 445746434146747. The reversal of 445746434146661 is 166641434647544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445746434146661 is a prime.

It is a super-3 number, since 3×445746434146661³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445746434146361) 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, 360672401 + ... + 361906166.

It is an arithmetic number, because the mean of its divisors is an integer number (58143007052688).

Almost surely, 2^{445746434146661} is an apocalyptic number.

It is an amenable number.

445746434146661 is a deficient number, since it is larger than the sum of its proper divisors (19397622274843).

445746434146661 is a wasteful number, since it uses less digits than its factorization.

445746434146661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722605411.

The product of its digits is 557383680, while the sum is 65.

The spelling of 445746434146661 in words is "four hundred forty-five trillion, seven hundred forty-six billion, four hundred thirty-four million, one hundred forty-six thousand, six hundred sixty-one".