61016160151661 has 8 divisors (see below), whose sum is σ = 71683321017504. Its totient is φ = 51202372155120.

The previous prime is 61016160151657. The next prime is 61016160151663. The reversal of 61016160151661 is 16615106161016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61016160151661 - 2² = 61016160151657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61016160151663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213343217171 + ... + 213343217456.

It is an arithmetic number, because the mean of its divisors is an integer number (8960415127188).

Almost surely, 2^{61016160151661} is an apocalyptic number.

It is an amenable number.

61016160151661 is a deficient number, since it is larger than the sum of its proper divisors (10667160865843).

61016160151661 is a wasteful number, since it uses less digits than its factorization.

61016160151661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426686434651.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 61016160151661 in words is "sixty-one trillion, sixteen billion, one hundred sixty million, one hundred fifty-one thousand, six hundred sixty-one".