20988377035 has 16 divisors (see below), whose sum is σ = 25857921600. Its totient is φ = 16344616960.

The previous prime is 20988377023. The next prime is 20988377057. The reversal of 20988377035 is 53077388902.

It is not a de Polignac number, because 20988377035 - 2⁷ = 20988376907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21967 + ... + 206056.

It is an arithmetic number, because the mean of its divisors is an integer number (1616120100).

Almost surely, 2^20988377035 is an apocalyptic number.

20988377035 is a deficient number, since it is larger than the sum of its proper divisors (4869544565).

20988377035 is a wasteful number, since it uses less digits than its factorization.

20988377035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228518.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 20988377035 in words is "twenty billion, nine hundred eighty-eight million, three hundred seventy-seven thousand, thirty-five".