2140816701461 has 2 divisors, whose sum is σ = 2140816701462. Its totient is φ = 2140816701460.

The previous prime is 2140816701347. The next prime is 2140816701469. The reversal of 2140816701461 is 1641076180412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164415804561 + 976400896900 = 1079081^2 + 988130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140816701461 - 2¹⁸ = 2140816439317 is a prime.

It is a super-2 number, since 2×2140816701461² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140816701469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070408350730 + 1070408350731.

It is an arithmetic number, because the mean of its divisors is an integer number (1070408350731).

Almost surely, 2^{2140816701461} is an apocalyptic number.

It is an amenable number.

2140816701461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140816701461 is an equidigital number, since it uses as much as digits as its factorization.

2140816701461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 2140816701461 in words is "two trillion, one hundred forty billion, eight hundred sixteen million, seven hundred one thousand, four hundred sixty-one".