6051660101521 has 2 divisors, whose sum is σ = 6051660101522. Its totient is φ = 6051660101520.

The previous prime is 6051660101519. The next prime is 6051660101561. The reversal of 6051660101521 is 1251010661506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5905094401600 + 146565699921 = 2430040^2 + 382839^2 .

It is a cyclic number.

It is not a de Polignac number, because 6051660101521 - 2¹ = 6051660101519 is a prime.

Together with 6051660101519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6051660101561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025830050760 + 3025830050761.

It is an arithmetic number, because the mean of its divisors is an integer number (3025830050761).

Almost surely, 2^{6051660101521} is an apocalyptic number.

It is an amenable number.

6051660101521 is a deficient number, since it is larger than the sum of its proper divisors (1).

6051660101521 is an equidigital number, since it uses as much as digits as its factorization.

6051660101521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 6051660101521 in words is "six trillion, fifty-one billion, six hundred sixty million, one hundred one thousand, five hundred twenty-one".