61355106140 has 24 divisors (see below), whose sum is σ = 128865226560. Its totient is φ = 24538327488.

The previous prime is 61355106089. The next prime is 61355106157. The reversal of 61355106140 is 4160155316.

61355106140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61355106097 and 61355106106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94775 + ... + 362894.

It is an arithmetic number, because the mean of its divisors is an integer number (5369384440).

Almost surely, 2^61355106140 is an apocalyptic number.

It is an amenable number.

61355106140 is an abundant number, since it is smaller than the sum of its proper divisors (67510120420).

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

61355106140 is a wasteful number, since it uses less digits than its factorization.

61355106140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464381 (or 464379 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 61355106140 in words is "sixty-one billion, three hundred fifty-five million, one hundred six thousand, one hundred forty".