1615080957643 has 2 divisors, whose sum is σ = 1615080957644. Its totient is φ = 1615080957642.

The previous prime is 1615080957619. The next prime is 1615080957697. The reversal of 1615080957643 is 3467590805161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1615080957643 - 2²⁹ = 1614544086731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1615080957443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807540478821 + 807540478822.

It is an arithmetic number, because the mean of its divisors is an integer number (807540478822).

Almost surely, 2^{1615080957643} is an apocalyptic number.

1615080957643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1615080957643 is an equidigital number, since it uses as much as digits as its factorization.

1615080957643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 1615080957643 in words is "one trillion, six hundred fifteen billion, eighty million, nine hundred fifty-seven thousand, six hundred forty-three".