61011151661115 has 64 divisors (see below), whose sum is σ = 111525727547520. Its totient is φ = 31622896005120.

The previous prime is 61011151661093. The next prime is 61011151661219. The reversal of 61011151661115 is 51116615111016.

61011151661115 is a `hidden beast` number, since 6 + 1 + 0 + 1 + 1 + 15 + 16 + 611 + 15 = 666.

61011151661115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61011151661115 - 2¹² = 61011151657019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61011151661115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2845566 + ... + 11406995.

It is an arithmetic number, because the mean of its divisors is an integer number (1742589492930).

Almost surely, 2^{61011151661115} is an apocalyptic number.

61011151661115 is a deficient number, since it is larger than the sum of its proper divisors (50514575886405).

61011151661115 is a wasteful number, since it uses less digits than its factorization.

61011151661115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253469 (or 14253463 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 36.

The spelling of 61011151661115 in words is "sixty-one trillion, eleven billion, one hundred fifty-one million, six hundred sixty-one thousand, one hundred fifteen".