20159520890 has 32 divisors (see below), whose sum is σ = 38451495744. Its totient is φ = 7583576320.

The previous prime is 20159520853. The next prime is 20159520943. The reversal of 20159520890 is 9802595102.

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, 176825 + ... + 267555.

It is an arithmetic number, because the mean of its divisors is an integer number (1201609242).

Almost surely, 2^20159520890 is an apocalyptic number.

20159520890 is a deficient number, since it is larger than the sum of its proper divisors (18291974854).

20159520890 is a wasteful number, since it uses less digits than its factorization.

20159520890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92062.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 20159520890 in words is "twenty billion, one hundred fifty-nine million, five hundred twenty thousand, eight hundred ninety".