60681663 has 32 divisors (see below), whose sum is σ = 106065920. Its totient is φ = 33553440.

The previous prime is 60681637. The next prime is 60681679. The reversal of 60681663 is 36618606.

It is not a de Polignac number, because 60681663 - 2⁸ = 60681407 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60681683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (3314560).

Almost surely, 2^60681663 is an apocalyptic number.

60681663 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

60681663 is a deficient number, since it is larger than the sum of its proper divisors (45384257).

60681663 is a wasteful number, since it uses less digits than its factorization.

60681663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10404 (or 10398 counting only the distinct ones).

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

The square root of 60681663 is about 7789.8435799443. The cubic root of 60681663 is about 392.9637516827.

The spelling of 60681663 in words is "sixty million, six hundred eighty-one thousand, six hundred sixty-three".