20435061652 has 6 divisors (see below), whose sum is σ = 35761357898. Its totient is φ = 10217530824.

The previous prime is 20435061649. The next prime is 20435061677. The reversal of 20435061652 is 25616053402.

It can be written as a sum of positive squares in only one way, i.e., 17380730896 + 3054330756 = 131836^2 + 55266^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554382703 + ... + 2554382710.

Almost surely, 2^20435061652 is an apocalyptic number.

It is an amenable number.

20435061652 is a deficient number, since it is larger than the sum of its proper divisors (15326296246).

20435061652 is a wasteful number, since it uses less digits than its factorization.

20435061652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108765417 (or 5108765415 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 20435061652 in words is "twenty billion, four hundred thirty-five million, sixty-one thousand, six hundred fifty-two".