20321162010 has 32 divisors (see below), whose sum is σ = 54189766080. Its totient is φ = 5418976464.

The previous prime is 20321161997. The next prime is 20321162023. The reversal of 20321162010 is 1026112302.

20321162010 is a `hidden beast` number, since 2 + 0 + 32 + 1 + 1 + 620 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (20321161997) and next prime (20321162023).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37631512 + ... + 37632051.

It is an arithmetic number, because the mean of its divisors is an integer number (1693430190).

Almost surely, 2^20321162010 is an apocalyptic number.

20321162010 is an abundant number, since it is smaller than the sum of its proper divisors (33868604070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321162010 is a wasteful number, since it uses less digits than its factorization.

20321162010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75263579 (or 75263573 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20321162010 its reverse (1026112302), we get a palindrome (21347274312).

The spelling of 20321162010 in words is "twenty billion, three hundred twenty-one million, one hundred sixty-two thousand, ten".