60661906 has 16 divisors (see below), whose sum is σ = 93338784. Its totient is φ = 29552544.

The previous prime is 60661897. The next prime is 60661943. The reversal of 60661906 is 60916606.

It is a happy number.

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, 54750 + ... + 55846.

It is an arithmetic number, because the mean of its divisors is an integer number (5833674).

Almost surely, 2^60661906 is an apocalyptic number.

60661906 is a deficient number, since it is larger than the sum of its proper divisors (32676878).

60661906 is a wasteful number, since it uses less digits than its factorization.

60661906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 60661906 is about 7788.5753511152. The cubic root of 60661906 is about 392.9210994371.

The spelling of 60661906 in words is "sixty million, six hundred sixty-one thousand, nine hundred six".