61356804116711 has 4 divisors (see below), whose sum is σ = 61356974201424. Its totient is φ = 61356634032000.

The previous prime is 61356804116693. The next prime is 61356804116749. The reversal of 61356804116711 is 11761140865316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61356804116711 is a prime.

It is a super-2 number, since 2×61356804116711² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61356804116711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61356804116411) 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, 84500090 + ... + 85223111.

It is an arithmetic number, because the mean of its divisors is an integer number (15339243550356).

Almost surely, 2^{61356804116711} is an apocalyptic number.

61356804116711 is a deficient number, since it is larger than the sum of its proper divisors (170084713).

61356804116711 is a wasteful number, since it uses less digits than its factorization.

61356804116711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170084712.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 61356804116711 in words is "sixty-one trillion, three hundred fifty-six billion, eight hundred four million, one hundred sixteen thousand, seven hundred eleven".