102701661841 has 3 divisors (see below), whose sum is σ = 102701982313. Its totient is φ = 102701341370.

The previous prime is 102701661817. The next prime is 102701661851. The reversal of 102701661841 is 148166107201.

The square root of 102701661841 is 320471.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 102701661841 - 2¹⁵ = 102701629073 is a prime.

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 102701661841.

It is not an unprimeable number, because it can be changed into a prime (102701661851) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 160236 + ... + 480706.

Almost surely, 2^102701661841 is an apocalyptic number.

102701661841 is the 320471-st square number.

102701661841 is the 160236-th centered octagonal number.

It is an amenable number.

102701661841 is a deficient number, since it is larger than the sum of its proper divisors (320472).

102701661841 is an frugal number, since it uses more digits than its factorization.

102701661841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640942 (or 320471 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 102701661841 in words is "one hundred two billion, seven hundred one million, six hundred sixty-one thousand, eight hundred forty-one".