60610661 has 4 divisors (see below), whose sum is σ = 64176012. Its totient is φ = 57045312.

The previous prime is 60610651. The next prime is 60610663. The reversal of 60610661 is 16601606.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54390625 + 6220036 = 7375^2 + 2494^2 .

It is a cyclic number.

It is not a de Polignac number, because 60610661 - 2²² = 56416357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60610661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60610663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782650 + ... + 1782683.

It is an arithmetic number, because the mean of its divisors is an integer number (16044003).

Almost surely, 2^60610661 is an apocalyptic number.

It is an amenable number.

60610661 is a deficient number, since it is larger than the sum of its proper divisors (3565351).

60610661 is a wasteful number, since it uses less digits than its factorization.

60610661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565350.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 60610661 is about 7785.2849016590. The cubic root of 60610661 is about 392.8104263883.

The spelling of 60610661 in words is "sixty million, six hundred ten thousand, six hundred sixty-one".