61098106320 has 120 divisors (see below), whose sum is σ = 205538782176. Its totient is φ = 16264959744.

The previous prime is 61098106319. The next prime is 61098106343. The reversal of 61098106320 is 2360189016.

61098106320 is a `hidden beast` number, since 6 + 1 + 0 + 9 + 8 + 10 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350359 + ... + 494921.

Almost surely, 2^61098106320 is an apocalyptic number.

61098106320 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 61098106320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102769391088).

61098106320 is an abundant number, since it is smaller than the sum of its proper divisors (144440675856).

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

61098106320 is a wasteful number, since it uses less digits than its factorization.

61098106320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145169 (or 145160 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 61098106320 in words is "sixty-one billion, ninety-eight million, one hundred six thousand, three hundred twenty".