202742135553 has 16 divisors (see below), whose sum is σ = 271334883456. Its totient is φ = 134656300800.

The previous prime is 202742135551. The next prime is 202742135599. The reversal of 202742135553 is 355531247202.

It is not a de Polignac number, because 202742135553 - 2¹ = 202742135551 is a prime.

It is a super-2 number, since 2×202742135553² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202742135551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799276 + ... + 1021922.

It is an arithmetic number, because the mean of its divisors is an integer number (16958430216).

Almost surely, 2^202742135553 is an apocalyptic number.

It is an amenable number.

202742135553 is a deficient number, since it is larger than the sum of its proper divisors (68592747903).

202742135553 is a wasteful number, since it uses less digits than its factorization.

202742135553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223784.

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 202742135553 in words is "two hundred two billion, seven hundred forty-two million, one hundred thirty-five thousand, five hundred fifty-three".