60661122661661 has 16 divisors (see below), whose sum is σ = 60947926709760. Its totient is φ = 60375162127680.

The previous prime is 60661122661639. The next prime is 60661122661669. The reversal of 60661122661661 is 16616622116606.

It is a cyclic number.

It is not a de Polignac number, because 60661122661661 - 2⁴² = 56263076150557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60661122661669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332384111 + ... + 332566563.

It is an arithmetic number, because the mean of its divisors is an integer number (3809245419360).

Almost surely, 2^{60661122661661} is an apocalyptic number.

It is an amenable number.

60661122661661 is a deficient number, since it is larger than the sum of its proper divisors (286804048099).

60661122661661 is a wasteful number, since it uses less digits than its factorization.

60661122661661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184756.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 60661122661661 in words is "sixty trillion, six hundred sixty-one billion, one hundred twenty-two million, six hundred sixty-one thousand, six hundred sixty-one".