61085536255170 has 256 divisors, whose sum is σ = 187378513781760. Its totient is φ = 13871546265600.

The previous prime is 61085536255147. The next prime is 61085536255171. The reversal of 61085536255170 is 7155263558016.

61085536255170 is a `hidden beast` number, since 6 + 1 + 0 + 8 + 5 + 5 + 3 + 625 + 5 + 1 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61085536255171) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 451477930 + ... + 451613210.

It is an arithmetic number, because the mean of its divisors is an integer number (731947319460).

Almost surely, 2^{61085536255170} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61085536255170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93689256890880).

61085536255170 is an abundant number, since it is smaller than the sum of its proper divisors (126292977526590).

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

61085536255170 is a wasteful number, since it uses less digits than its factorization.

61085536255170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136858 (or 136852 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 54.

The spelling of 61085536255170 in words is "sixty-one trillion, eighty-five billion, five hundred thirty-six million, two hundred fifty-five thousand, one hundred seventy".