1016122552161 has 48 divisors (see below), whose sum is σ = 1470559694976. Its totient is φ = 621935774208.

The previous prime is 1016122552153. The next prime is 1016122552183. The reversal of 1016122552161 is 1612552216101.

It is a happy number.

It is not a de Polignac number, because 1016122552161 - 2³ = 1016122552153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1016122552261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77601531 + ... + 77614623.

It is an arithmetic number, because the mean of its divisors is an integer number (30636660312).

Almost surely, 2^{1016122552161} is an apocalyptic number.

It is an amenable number.

1016122552161 is a deficient number, since it is larger than the sum of its proper divisors (454437142815).

1016122552161 is a wasteful number, since it uses less digits than its factorization.

1016122552161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14022 (or 13979 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

Adding to 1016122552161 its reverse (1612552216101), we get a palindrome (2628674768262).

The spelling of 1016122552161 in words is "one trillion, sixteen billion, one hundred twenty-two million, five hundred fifty-two thousand, one hundred sixty-one".