60561660 has 24 divisors (see below), whose sum is σ = 169572816. Its totient is φ = 16149760.

The previous prime is 60561653. The next prime is 60561661. The reversal of 60561660 is 6616506.

It is a hoax number, since the sum of its digits (30) 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 (30).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60561661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504621 + ... + 504740.

It is an arithmetic number, because the mean of its divisors is an integer number (7065534).

Almost surely, 2^60561660 is an apocalyptic number.

60561660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60561660 is an abundant number, since it is smaller than the sum of its proper divisors (109011156).

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

60561660 is a wasteful number, since it uses less digits than its factorization.

60561660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009373 (or 1009371 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 60561660 is about 7782.1372385740. The cubic root of 60561660 is about 392.7045413135.

The spelling of 60561660 in words is "sixty million, five hundred sixty-one thousand, six hundred sixty".