61335880609012 has 24 divisors (see below), whose sum is σ = 112859407238760. Its totient is φ = 29125008312960.

The previous prime is 61335880608907. The next prime is 61335880609057. The reversal of 61335880609012 is 21090608853316.

It can be written as a sum of positive squares in 4 ways, for example, as 1042922967696 + 60292957641316 = 1021236^2 + 7764854^2 .

It is a super-2 number, since 2×61335880609012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4334071543 + ... + 4334085694.

It is an arithmetic number, because the mean of its divisors is an integer number (4702475301615).

Almost surely, 2^{61335880609012} is an apocalyptic number.

It is an amenable number.

61335880609012 is a deficient number, since it is larger than the sum of its proper divisors (51523526629748).

61335880609012 is a wasteful number, since it uses less digits than its factorization.

61335880609012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8668157331 (or 8668157329 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 61335880609012 in words is "sixty-one trillion, three hundred thirty-five billion, eight hundred eighty million, six hundred nine thousand, twelve".