1655553431133 has 36 divisors (see below), whose sum is σ = 2945414401020. Its totient is φ = 890381673216.

The previous prime is 1655553431117. The next prime is 1655553431197. The reversal of 1655553431133 is 3311343555561.

1655553431133 is a `hidden beast` number, since 1 + 6 + 5 + 55 + 534 + 31 + 1 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 516505254489 + 1139048176644 = 718683^2 + 1067262^2 .

It is not a de Polignac number, because 1655553431133 - 2⁴ = 1655553431117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655553431533) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 110406898 + ... + 110421891.

It is an arithmetic number, because the mean of its divisors is an integer number (81817066695).

Almost surely, 2^{1655553431133} is an apocalyptic number.

It is an amenable number.

1655553431133 is a deficient number, since it is larger than the sum of its proper divisors (1289860969887).

1655553431133 is a wasteful number, since it uses less digits than its factorization.

1655553431133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220828826 (or 220828816 counting only the distinct ones).

The product of its digits is 1215000, while the sum is 45.

Adding to 1655553431133 its reverse (3311343555561), we get a palindrome (4966896986694).

The spelling of 1655553431133 in words is "one trillion, six hundred fifty-five billion, five hundred fifty-three million, four hundred thirty-one thousand, one hundred thirty-three".