61203453345 has 24 divisors (see below), whose sum is σ = 108343138176. Its totient is φ = 31947333408.

The previous prime is 61203453343. The next prime is 61203453347. The reversal of 61203453345 is 54335430216.

61203453345 is a `hidden beast` number, since 61 + 20 + 3 + 4 + 533 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (61203453343) and next prime (61203453347).

It is not a de Polignac number, because 61203453345 - 2¹ = 61203453343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61203453343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14466787 + ... + 14471016.

It is an arithmetic number, because the mean of its divisors is an integer number (4514297424).

Almost surely, 2^61203453345 is an apocalyptic number.

It is an amenable number.

61203453345 is a deficient number, since it is larger than the sum of its proper divisors (47139684831).

61203453345 is a wasteful number, since it uses less digits than its factorization.

61203453345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28937861 (or 28937858 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 61203453345 in words is "sixty-one billion, two hundred three million, four hundred fifty-three thousand, three hundred forty-five".