61613204516 has 12 divisors (see below), whose sum is σ = 114165643788. Its totient is φ = 28994449152.

The previous prime is 61613204509. The next prime is 61613204557. The reversal of 61613204516 is 61540231616.

It can be written as a sum of positive squares in 2 ways, for example, as 57638406400 + 3974798116 = 240080^2 + 63046^2 .

It is a super-3 number, since 3×61613204516³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453038201 + ... + 453038336.

It is an arithmetic number, because the mean of its divisors is an integer number (9513803649).

Almost surely, 2^61613204516 is an apocalyptic number.

It is an amenable number.

61613204516 is a deficient number, since it is larger than the sum of its proper divisors (52552439272).

61613204516 is a wasteful number, since it uses less digits than its factorization.

61613204516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906076558 (or 906076556 counting only the distinct ones).

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

The spelling of 61613204516 in words is "sixty-one billion, six hundred thirteen million, two hundred four thousand, five hundred sixteen".