61520066316224 has 14 divisors (see below), whose sum is σ = 122078881596384. Its totient is φ = 30760033158080.

The previous prime is 61520066316169. The next prime is 61520066316229. The reversal of 61520066316224 is 42261366002516.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61520066316229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480625518032 + ... + 480625518159.

Almost surely, 2^{61520066316224} is an apocalyptic number.

61520066316224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61520066316224 is a deficient number, since it is larger than the sum of its proper divisors (60558815280160).

61520066316224 is an equidigital number, since it uses as much as digits as its factorization.

61520066316224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961251036203 (or 961251036193 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 61520066316224 in words is "sixty-one trillion, five hundred twenty billion, sixty-six million, three hundred sixteen thousand, two hundred twenty-four".