60661320 has 32 divisors (see below), whose sum is σ = 181984320. Its totient is φ = 16176320.

The previous prime is 60661303. The next prime is 60661339. The reversal of 60661320 is 2316606.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 252636 + ... + 252875.

It is an arithmetic number, because the mean of its divisors is an integer number (5687010).

Almost surely, 2^60661320 is an apocalyptic number.

60661320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60661320 is an abundant number, since it is smaller than the sum of its proper divisors (121323000).

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

60661320 is a wasteful number, since it uses less digits than its factorization.

60661320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505525 (or 505521 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 60661320 is about 7788.5377318210. The cubic root of 60661320 is about 392.9198342141.

Adding to 60661320 its reverse (2316606), we get a palindrome (62977926).

The spelling of 60661320 in words is "sixty million, six hundred sixty-one thousand, three hundred twenty".