1604911132651 has 2 divisors, whose sum is σ = 1604911132652. Its totient is φ = 1604911132650.

The previous prime is 1604911132477. The next prime is 1604911132667. The reversal of 1604911132651 is 1562311194061.

It is a strong prime.

It is an emirp because it is prime and its reverse (1562311194061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1604911132651 - 2¹³ = 1604911124459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1604911132051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802455566325 + 802455566326.

It is an arithmetic number, because the mean of its divisors is an integer number (802455566326).

Almost surely, 2^{1604911132651} is an apocalyptic number.

1604911132651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604911132651 is an equidigital number, since it uses as much as digits as its factorization.

1604911132651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 1604911132651 in words is "one trillion, six hundred four billion, nine hundred eleven million, one hundred thirty-two thousand, six hundred fifty-one".