1655526645623 has 4 divisors (see below), whose sum is σ = 1655579945040. Its totient is φ = 1655473346208.

The previous prime is 1655526645613. The next prime is 1655526645649. The reversal of 1655526645623 is 3265466255561.

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

It is a cyclic number.

It is not a de Polignac number, because 1655526645623 - 2¹⁶ = 1655526580087 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 (1655526645613) 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, 26603090 + ... + 26665247.

It is an arithmetic number, because the mean of its divisors is an integer number (413894986260).

Almost surely, 2^{1655526645623} is an apocalyptic number.

1655526645623 is a deficient number, since it is larger than the sum of its proper divisors (53299417).

1655526645623 is an equidigital number, since it uses as much as digits as its factorization.

1655526645623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53299416.

The product of its digits is 38880000, while the sum is 56.

The spelling of 1655526645623 in words is "one trillion, six hundred fifty-five billion, five hundred twenty-six million, six hundred forty-five thousand, six hundred twenty-three".