1650651015149 has 2 divisors, whose sum is σ = 1650651015150. Its totient is φ = 1650651015148.

The previous prime is 1650651015121. The next prime is 1650651015157. The reversal of 1650651015149 is 9415101560561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1650500339524 + 150675625 = 1284718^2 + 12275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1650651015149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1650651015179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825325507574 + 825325507575.

It is an arithmetic number, because the mean of its divisors is an integer number (825325507575).

Almost surely, 2^{1650651015149} is an apocalyptic number.

It is an amenable number.

1650651015149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650651015149 is an equidigital number, since it uses as much as digits as its factorization.

1650651015149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 1650651015149 in words is "one trillion, six hundred fifty billion, six hundred fifty-one million, fifteen thousand, one hundred forty-nine".