20617353002 has 4 divisors (see below), whose sum is σ = 30926029506. Its totient is φ = 10308676500.

The previous prime is 20617352983. The next prime is 20617353049. The reversal of 20617353002 is 20035371602.

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

It can be written as a sum of positive squares in only one way, i.e., 13721545321 + 6895807681 = 117139^2 + 83041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5154338249 + ... + 5154338252.

Almost surely, 2^20617353002 is an apocalyptic number.

20617353002 is a deficient number, since it is larger than the sum of its proper divisors (10308676504).

20617353002 is a wasteful number, since it uses less digits than its factorization.

20617353002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308676503.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 20617353002 in words is "twenty billion, six hundred seventeen million, three hundred fifty-three thousand, two".