60666642 has 24 divisors (see below), whose sum is σ = 139177116. Its totient is φ = 19032576.

The previous prime is 60666631. The next prime is 60666653. The reversal of 60666642 is 24666606.

It is an interprime number because it is at equal distance from previous prime (60666631) and next prime (60666653).

It can be written as a sum of positive squares in 2 ways, for example, as 59582961 + 1083681 = 7719^2 + 1041^2 .

It is a junction number, because it is equal to n+sod(n) for n = 60666597 and 60666606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98823 + ... + 99434.

Almost surely, 2^60666642 is an apocalyptic number.

60666642 is an abundant number, since it is smaller than the sum of its proper divisors (78510474).

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

60666642 is a wasteful number, since it uses less digits than its factorization.

60666642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198282 (or 198279 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 60666642 is about 7788.8793802446. The cubic root of 60666642 is about 392.9313245576.

Subtracting from 60666642 its sum of digits (36), we obtain a palindrome (60666606).

The spelling of 60666642 in words is "sixty million, six hundred sixty-six thousand, six hundred forty-two".