16452026400621 has 32 divisors (see below), whose sum is σ = 25776660096000. Its totient is φ = 9329393302320.

The previous prime is 16452026400611. The next prime is 16452026400647. The reversal of 16452026400621 is 12600462025461.

It is not a de Polignac number, because 16452026400621 - 2¹¹ = 16452026398573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16452026400621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16452026400611) 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, 60889491 + ... + 61159088.

It is an arithmetic number, because the mean of its divisors is an integer number (805520628000).

Almost surely, 2^{16452026400621} is an apocalyptic number.

It is an amenable number.

16452026400621 is a deficient number, since it is larger than the sum of its proper divisors (9324633695379).

16452026400621 is a wasteful number, since it uses less digits than its factorization.

16452026400621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122048734 (or 122048720 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 16452026400621 in words is "sixteen trillion, four hundred fifty-two billion, twenty-six million, four hundred thousand, six hundred twenty-one".