61168124020 has 12 divisors (see below), whose sum is σ = 128453060484. Its totient is φ = 24467249600.

The previous prime is 61168123999. The next prime is 61168124027. The reversal of 61168124020 is 2042186116.

It can be written as a sum of positive squares in 2 ways, for example, as 23579445136 + 37588678884 = 153556^2 + 193878^2 .

It is a super-2 number, since 2×61168124020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61168124027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529203081 + ... + 1529203120.

It is an arithmetic number, because the mean of its divisors is an integer number (10704421707).

Almost surely, 2^61168124020 is an apocalyptic number.

It is an amenable number.

61168124020 is an abundant number, since it is smaller than the sum of its proper divisors (67284936464).

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

61168124020 is a wasteful number, since it uses less digits than its factorization.

61168124020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058406210 (or 3058406208 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 61168124020 in words is "sixty-one billion, one hundred sixty-eight million, one hundred twenty-four thousand, twenty".