1654200255445 has 4 divisors (see below), whose sum is σ = 1985040306540. Its totient is φ = 1323360204352.

The previous prime is 1654200255439. The next prime is 1654200255467. The reversal of 1654200255445 is 5445520024561.

It is a happy number.

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 1045436721156 + 608763534289 = 1022466^2 + 780233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1654200255445 - 2²³ = 1654191866837 is a prime.

It is a super-2 number, since 2×1654200255445² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165420025540 + ... + 165420025549.

It is an arithmetic number, because the mean of its divisors is an integer number (496260076635).

Almost surely, 2^{1654200255445} is an apocalyptic number.

It is an amenable number.

1654200255445 is a deficient number, since it is larger than the sum of its proper divisors (330840051095).

1654200255445 is an equidigital number, since it uses as much as digits as its factorization.

1654200255445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330840051094.

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 1654200255445 in words is "one trillion, six hundred fifty-four billion, two hundred million, two hundred fifty-five thousand, four hundred forty-five".