15842299045961 has 2 divisors, whose sum is σ = 15842299045962. Its totient is φ = 15842299045960.

The previous prime is 15842299045933. The next prime is 15842299046039. The reversal of 15842299045961 is 16954099224851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12549525885961 + 3292773160000 = 3542531^2 + 1814600^2 .

It is a cyclic number.

It is not a de Polignac number, because 15842299045961 - 2¹⁰ = 15842299044937 is a prime.

It is not a weakly prime, because it can be changed into another prime (15842299045361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7921149522980 + 7921149522981.

It is an arithmetic number, because the mean of its divisors is an integer number (7921149522981).

Almost surely, 2^{15842299045961} is an apocalyptic number.

It is an amenable number.

15842299045961 is a deficient number, since it is larger than the sum of its proper divisors (1).

15842299045961 is an equidigital number, since it uses as much as digits as its factorization.

15842299045961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55987200, while the sum is 65.

The spelling of 15842299045961 in words is "fifteen trillion, eight hundred forty-two billion, two hundred ninety-nine million, forty-five thousand, nine hundred sixty-one".