61111005060 has 96 divisors (see below), whose sum is σ = 204057649152. Its totient is φ = 13360913280.

The previous prime is 61111005041. The next prime is 61111005089. The reversal of 61111005060 is 6050011116.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3153436 + ... + 3172755.

It is an arithmetic number, because the mean of its divisors is an integer number (2125600512).

Almost surely, 2^61111005060 is an apocalyptic number.

61111005060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61111005060 is an abundant number, since it is smaller than the sum of its proper divisors (142946644092).

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

61111005060 is a wasteful number, since it uses less digits than its factorization.

61111005060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326233 (or 6326231 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 61111005060 its reverse (6050011116), we get a palindrome (67161016176).

The spelling of 61111005060 in words is "sixty-one billion, one hundred eleven million, five thousand, sixty".