6145055156521 has 2 divisors, whose sum is σ = 6145055156522. Its totient is φ = 6145055156520.

The previous prime is 6145055156509. The next prime is 6145055156567. The reversal of 6145055156521 is 1256515505416.

It is an a-pointer prime, because the next prime (6145055156567) can be obtained adding 6145055156521 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3315968160400 + 2829086996121 = 1820980^2 + 1681989^2 .

It is a cyclic number.

It is not a de Polignac number, because 6145055156521 - 2¹¹ = 6145055154473 is a prime.

It is not a weakly prime, because it can be changed into another prime (6145055154521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3072527578260 + 3072527578261.

It is an arithmetic number, because the mean of its divisors is an integer number (3072527578261).

Almost surely, 2^{6145055156521} is an apocalyptic number.

It is an amenable number.

6145055156521 is a deficient number, since it is larger than the sum of its proper divisors (1).

6145055156521 is an equidigital number, since it uses as much as digits as its factorization.

6145055156521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900000, while the sum is 46.

The spelling of 6145055156521 in words is "six trillion, one hundred forty-five billion, fifty-five million, one hundred fifty-six thousand, five hundred twenty-one".