611113980 has 96 divisors (see below), whose sum is σ = 1743436800. Its totient is φ = 159913728.

The previous prime is 611113973. The next prime is 611113981. The reversal of 611113980 is 89311116.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611113981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085179 + ... + 1085741.

It is an arithmetic number, because the mean of its divisors is an integer number (18160800).

Almost surely, 2^611113980 is an apocalyptic number.

611113980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611113980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871718400).

611113980 is an abundant number, since it is smaller than the sum of its proper divisors (1132322820).

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

611113980 is a wasteful number, since it uses less digits than its factorization.

611113980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 611113980 is about 24720.7196497189. The cubic root of 611113980 is about 848.6085562162.

The spelling of 611113980 in words is "six hundred eleven million, one hundred thirteen thousand, nine hundred eighty".