2861608516662 has 64 divisors (see below), whose sum is σ = 6885603210240. Its totient is φ = 775133635584.

The previous prime is 2861608516651. The next prime is 2861608516667. The reversal of 2861608516662 is 2666158061682.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861608516667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12998487 + ... + 13216802.

It is an arithmetic number, because the mean of its divisors is an integer number (107587550160).

Almost surely, 2^{2861608516662} is an apocalyptic number.

2861608516662 is an abundant number, since it is smaller than the sum of its proper divisors (4023994693578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2861608516662 is a wasteful number, since it uses less digits than its factorization.

2861608516662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26215437.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 2861608516662 in words is "two trillion, eight hundred sixty-one billion, six hundred eight million, five hundred sixteen thousand, six hundred sixty-two".