6161122020 has 72 divisors (see below), whose sum is σ = 18206947584. Its totient is φ = 1556488512.

The previous prime is 6161122013. The next prime is 6161122021. The reversal of 6161122020 is 202211616.

It is not an unprimeable number, because it can be changed into a prime (6161122021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120564 + ... + 163883.

It is an arithmetic number, because the mean of its divisors is an integer number (252874272).

Almost surely, 2^6161122020 is an apocalyptic number.

6161122020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6161122020 is an abundant number, since it is smaller than the sum of its proper divisors (12045825564).

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

6161122020 is a wasteful number, since it uses less digits than its factorization.

6161122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284497 (or 284476 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 6161122020 is about 78492.8150852038. The cubic root of 6161122020 is about 1833.2425833500.

Adding to 6161122020 its reverse (202211616), we get a palindrome (6363333636).

The spelling of 6161122020 in words is "six billion, one hundred sixty-one million, one hundred twenty-two thousand, twenty".