61334218329905 has 32 divisors (see below), whose sum is σ = 74327963018400. Its totient is φ = 48583677542400.

The previous prime is 61334218329869. The next prime is 61334218329973. The reversal of 61334218329905 is 50992381243316.

It can be written as a sum of positive squares in 16 ways, for example, as 58714090150144 + 2620128179761 = 7662512^2 + 1618681^2 .

It is not a de Polignac number, because 61334218329905 - 2³⁴ = 61317038460721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4005361529 + ... + 4005376841.

It is an arithmetic number, because the mean of its divisors is an integer number (2322748844325).

Almost surely, 2^{61334218329905} is an apocalyptic number.

It is an amenable number.

61334218329905 is a deficient number, since it is larger than the sum of its proper divisors (12993744688495).

61334218329905 is a wasteful number, since it uses less digits than its factorization.

61334218329905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22181.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 61334218329905 in words is "sixty-one trillion, three hundred thirty-four billion, two hundred eighteen million, three hundred twenty-nine thousand, nine hundred five".