1655237852443 has 4 divisors (see below), whose sum is σ = 1891700402800. Its totient is φ = 1418775302088.

The previous prime is 1655237852431. The next prime is 1655237852531. The reversal of 1655237852443 is 3442587325561.

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 1655237852443 - 2⁹ = 1655237851931 is a prime.

It is a super-2 number, since 2×1655237852443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655237852743) 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, 118231275168 + ... + 118231275181.

It is an arithmetic number, because the mean of its divisors is an integer number (472925100700).

Almost surely, 2^{1655237852443} is an apocalyptic number.

1655237852443 is a deficient number, since it is larger than the sum of its proper divisors (236462550357).

1655237852443 is an equidigital number, since it uses as much as digits as its factorization.

1655237852443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236462550356.

The product of its digits is 24192000, while the sum is 55.

It can be divided in two parts, 1655237 and 852443, that added together give a triangular number (2507680 = T₂₂₃₉).

The spelling of 1655237852443 in words is "one trillion, six hundred fifty-five billion, two hundred thirty-seven million, eight hundred fifty-two thousand, four hundred forty-three".