6610051030621 has 8 divisors (see below), whose sum is σ = 7000360145784. Its totient is φ = 6219906647040.

The previous prime is 6610051030591. The next prime is 6610051030651. The reversal of 6610051030621 is 1260301500166.

It is an interprime number because it is at equal distance from previous prime (6610051030591) and next prime (6610051030651).

It can be written as a sum of positive squares in 4 ways, for example, as 772579471225 + 5837471559396 = 878965^2 + 2416086^2 .

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 6610051030621 - 2²¹ = 6610048933469 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 (6610051030651) 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, 41100270 + ... + 41260783.

It is an arithmetic number, because the mean of its divisors is an integer number (875045018223).

Almost surely, 2^{6610051030621} is an apocalyptic number.

It is an amenable number.

6610051030621 is a deficient number, since it is larger than the sum of its proper divisors (390309115163).

6610051030621 is a wasteful number, since it uses less digits than its factorization.

6610051030621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82365791.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 6610051030621 its reverse (1260301500166), we get a palindrome (7870352530787).

The spelling of 6610051030621 in words is "six trillion, six hundred ten billion, fifty-one million, thirty thousand, six hundred twenty-one".