7561061130 has 80 divisors (see below), whose sum is σ = 21169913184. Its totient is φ = 1728226080.

The previous prime is 7561061119. The next prime is 7561061197. The reversal of 7561061130 is 311601657.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19545 + ... + 124515.

Almost surely, 2^7561061130 is an apocalyptic number.

7561061130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7561061130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10584956592).

7561061130 is an abundant number, since it is smaller than the sum of its proper divisors (13608852054).

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

7561061130 is a wasteful number, since it uses less digits than its factorization.

7561061130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105009 (or 104988 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 7561061130 is about 86954.3623402529. The cubic root of 7561061130 is about 1962.7316079176.

Adding to 7561061130 its reverse (311601657), we get a palindrome (7872662787).

The spelling of 7561061130 in words is "seven billion, five hundred sixty-one million, sixty-one thousand, one hundred thirty".