2061700146257 has 2 divisors, whose sum is σ = 2061700146258. Its totient is φ = 2061700146256.

The previous prime is 2061700146197. The next prime is 2061700146263. The reversal of 2061700146257 is 7526410071602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1792281015121 + 269419131136 = 1338761^2 + 519056^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061700146257 - 2¹⁶ = 2061700080721 is a prime.

It is a super-2 number, since 2×2061700146257² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2061700143257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030850073128 + 1030850073129.

It is an arithmetic number, because the mean of its divisors is an integer number (1030850073129).

Almost surely, 2^{2061700146257} is an apocalyptic number.

It is an amenable number.

2061700146257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061700146257 is an equidigital number, since it uses as much as digits as its factorization.

2061700146257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 2061700146257 in words is "two trillion, sixty-one billion, seven hundred million, one hundred forty-six thousand, two hundred fifty-seven".