161016001011 has 16 divisors (see below), whose sum is σ = 251097078400. Its totient is φ = 101694316104.

The previous prime is 161016000979. The next prime is 161016001021. The reversal of 161016001011 is 110100610161.

161016001011 is a `hidden beast` number, since 1 + 61 + 0 + 1 + 600 + 1 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 161016001011 - 2⁵ = 161016000979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161016001021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156935161 + ... + 156936186.

It is an arithmetic number, because the mean of its divisors is an integer number (15693567400).

Almost surely, 2^161016001011 is an apocalyptic number.

161016001011 is a deficient number, since it is larger than the sum of its proper divisors (90081077389).

161016001011 is a wasteful number, since it uses less digits than its factorization.

161016001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313871375 (or 313871369 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 161016001011 its reverse (110100610161), we get a palindrome (271116611172).

The spelling of 161016001011 in words is "one hundred sixty-one billion, sixteen million, one thousand, eleven".