654151550444213 has 4 divisors (see below), whose sum is σ = 670106466308748. Its totient is φ = 638196634579680.

The previous prime is 654151550444153. The next prime is 654151550444221. The reversal of 654151550444213 is 312444055151456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64821451085329 + 589330099358884 = 8051177^2 + 24276122^2 .

It is a cyclic number.

It is not a de Polignac number, because 654151550444213 - 2¹² = 654151550440117 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 (654151550444713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7977457932206 + ... + 7977457932287.

It is an arithmetic number, because the mean of its divisors is an integer number (167526616577187).

Almost surely, 2^{654151550444213} is an apocalyptic number.

It is an amenable number.

654151550444213 is a deficient number, since it is larger than the sum of its proper divisors (15954915864535).

654151550444213 is a wasteful number, since it uses less digits than its factorization.

654151550444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15954915864534.

The product of its (nonzero) digits is 5760000, while the sum is 50.

The spelling of 654151550444213 in words is "six hundred fifty-four trillion, one hundred fifty-one billion, five hundred fifty million, four hundred forty-four thousand, two hundred thirteen".