61505660010016 has 48 divisors (see below), whose sum is σ = 121146429587904. Its totient is φ = 30738314674944.

The previous prime is 61505660010007. The next prime is 61505660010017. The reversal of 61505660010016 is 61001006650516.

It is not an unprimeable number, because it can be changed into a prime (61505660010017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2015440390 + ... + 2015470906.

It is an arithmetic number, because the mean of its divisors is an integer number (2523883949748).

Almost surely, 2^{61505660010016} is an apocalyptic number.

It is an amenable number.

61505660010016 is a deficient number, since it is larger than the sum of its proper divisors (59640769577888).

61505660010016 is a wasteful number, since it uses less digits than its factorization.

61505660010016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58193 (or 58185 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 61505660010016 in words is "sixty-one trillion, five hundred five billion, six hundred sixty million, ten thousand, sixteen".