1590148945657 has 2 divisors, whose sum is σ = 1590148945658. Its totient is φ = 1590148945656.

The previous prime is 1590148945613. The next prime is 1590148945699. The reversal of 1590148945657 is 7565498410951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402433851536 + 187715094121 = 1184244^2 + 433261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1590148945657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1590148945457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 795074472828 + 795074472829.

It is an arithmetic number, because the mean of its divisors is an integer number (795074472829).

Almost surely, 2^{1590148945657} is an apocalyptic number.

It is an amenable number.

1590148945657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1590148945657 is an equidigital number, since it uses as much as digits as its factorization.

1590148945657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432000, while the sum is 64.

The spelling of 1590148945657 in words is "one trillion, five hundred ninety billion, one hundred forty-eight million, nine hundred forty-five thousand, six hundred fifty-seven".