654061413621 has 32 divisors (see below), whose sum is σ = 1124763033600. Its totient is φ = 328055878080.

The previous prime is 654061413619. The next prime is 654061413671. The reversal of 654061413621 is 126314160456.

It is not a de Polignac number, because 654061413621 - 2¹ = 654061413619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654061413621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654061413671) 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 31 ways as a sum of consecutive naturals, for example, 48811141 + ... + 48824538.

It is an arithmetic number, because the mean of its divisors is an integer number (35148844800).

Almost surely, 2^654061413621 is an apocalyptic number.

It is an amenable number.

654061413621 is a deficient number, since it is larger than the sum of its proper divisors (470701619979).

654061413621 is a wasteful number, since it uses less digits than its factorization.

654061413621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97635729.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 654061413621 in words is "six hundred fifty-four billion, sixty-one million, four hundred thirteen thousand, six hundred twenty-one".