61173360 has 160 divisors (see below), whose sum is σ = 213319680. Its totient is φ = 16111872.

The previous prime is 61173313. The next prime is 61173379. The reversal of 61173360 is 6337116.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274209 + ... + 274431.

It is an arithmetic number, because the mean of its divisors is an integer number (1333248).

Almost surely, 2^61173360 is an apocalyptic number.

61173360 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 61173360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106659840).

61173360 is an abundant number, since it is smaller than the sum of its proper divisors (152146320).

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

61173360 is a wasteful number, since it uses less digits than its factorization.

61173360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 61173360 is about 7821.3400386379. The cubic root of 61173360 is about 394.0222787955.

The spelling of 61173360 in words is "sixty-one million, one hundred seventy-three thousand, three hundred sixty".