7455224665621 has 8 divisors (see below), whose sum is σ = 7880167592000. Its totient is φ = 7033538007360.

The previous prime is 7455224665589. The next prime is 7455224665639. The reversal of 7455224665621 is 1265664225547.

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

It is a cyclic number.

It is not a de Polignac number, because 7455224665621 - 2⁵ = 7455224665589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7455224660621) 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, 814062321 + ... + 814071478.

It is an arithmetic number, because the mean of its divisors is an integer number (985020949000).

Almost surely, 2^{7455224665621} is an apocalyptic number.

It is an amenable number.

7455224665621 is a deficient number, since it is larger than the sum of its proper divisors (424942926379).

7455224665621 is a wasteful number, since it uses less digits than its factorization.

7455224665621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628134059.

The product of its digits is 24192000, while the sum is 55.

The spelling of 7455224665621 in words is "seven trillion, four hundred fifty-five billion, two hundred twenty-four million, six hundred sixty-five thousand, six hundred twenty-one".