61168927770 has 24 divisors (see below), whose sum is σ = 159039212436. Its totient is φ = 16311714048.

The previous prime is 61168927763. The next prime is 61168927783. The reversal of 61168927770 is 7772986116.

It can be written as a sum of positive squares in 2 ways, for example, as 56869371729 + 4299556041 = 238473^2 + 65571^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339827287 + ... + 339827466.

Almost surely, 2^61168927770 is an apocalyptic number.

61168927770 is an abundant number, since it is smaller than the sum of its proper divisors (97870284666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61168927770 is a wasteful number, since it uses less digits than its factorization.

61168927770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679654766 (or 679654763 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 61168927770 in words is "sixty-one billion, one hundred sixty-eight million, nine hundred twenty-seven thousand, seven hundred seventy".