2161460623519 has 2 divisors, whose sum is σ = 2161460623520. Its totient is φ = 2161460623518.

The previous prime is 2161460623499. The next prime is 2161460623541. The reversal of 2161460623519 is 9153260641612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2161460623519 - 2³¹ = 2159313139871 is a prime.

It is a super-2 number, since 2×2161460623519² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2161460623559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080730311759 + 1080730311760.

It is an arithmetic number, because the mean of its divisors is an integer number (1080730311760).

Almost surely, 2^{2161460623519} is an apocalyptic number.

2161460623519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161460623519 is an equidigital number, since it uses as much as digits as its factorization.

2161460623519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 2161460623519 in words is "two trillion, one hundred sixty-one billion, four hundred sixty million, six hundred twenty-three thousand, five hundred nineteen".