61522261316 has 12 divisors (see below), whose sum is σ = 113997131388. Its totient is φ = 28951652352.

The previous prime is 61522261313. The next prime is 61522261379. The reversal of 61522261316 is 61316222516.

It can be written as a sum of positive squares in 2 ways, for example, as 35681698816 + 25840562500 = 188896^2 + 160750^2 .

It is not an unprimeable number, because it can be changed into a prime (61522261313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452369501 + ... + 452369636.

It is an arithmetic number, because the mean of its divisors is an integer number (9499760949).

Almost surely, 2^61522261316 is an apocalyptic number.

It is an amenable number.

61522261316 is a deficient number, since it is larger than the sum of its proper divisors (52474870072).

61522261316 is a wasteful number, since it uses less digits than its factorization.

61522261316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904739158 (or 904739156 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The spelling of 61522261316 in words is "sixty-one billion, five hundred twenty-two million, two hundred sixty-one thousand, three hundred sixteen".