60491664 has 80 divisors (see below), whose sum is σ = 179274240. Its totient is φ = 19509120.

The previous prime is 60491653. The next prime is 60491671. The reversal of 60491664 is 46619406.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11134 + ... + 15650.

It is an arithmetic number, because the mean of its divisors is an integer number (2240928).

Almost surely, 2^60491664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60491664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89637120).

60491664 is an abundant number, since it is smaller than the sum of its proper divisors (118782576).

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

60491664 is a wasteful number, since it uses less digits than its factorization.

60491664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4553 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 60491664 is about 7777.6387162172. The cubic root of 60491664 is about 392.5531895407.

The spelling of 60491664 in words is "sixty million, four hundred ninety-one thousand, six hundred sixty-four".