20161260010 has 16 divisors (see below), whose sum is σ = 36292119336. Its totient is φ = 8064092608.

The previous prime is 20161259971. The next prime is 20161260047. The reversal of 20161260010 is 1006216102.

It can be written as a sum of positive squares in 4 ways, for example, as 11015971849 + 9145288161 = 104957^2 + 95631^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20161260010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225324 + ... + 301816.

Almost surely, 2^20161260010 is an apocalyptic number.

20161260010 is a deficient number, since it is larger than the sum of its proper divisors (16130859326).

20161260010 is a wasteful number, since it uses less digits than its factorization.

20161260010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102857.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20161260010 its reverse (1006216102), we get a palindrome (21167476112).

The spelling of 20161260010 in words is "twenty billion, one hundred sixty-one million, two hundred sixty thousand, ten".