1655650499 has 2 divisors, whose sum is σ = 1655650500. Its totient is φ = 1655650498.

The previous prime is 1655650441. The next prime is 1655650501. The reversal of 1655650499 is 9940565561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1655650499 - 2¹² = 1655646403 is a prime.

Together with 1655650501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1655650099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827825249 + 827825250.

It is an arithmetic number, because the mean of its divisors is an integer number (827825250).

Almost surely, 2^1655650499 is an apocalyptic number.

1655650499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655650499 is an equidigital number, since it uses as much as digits as its factorization.

1655650499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The square root of 1655650499 is about 40689.6854128906. The cubic root of 1655650499 is about 1183.0131027327.

The spelling of 1655650499 in words is "one billion, six hundred fifty-five million, six hundred fifty thousand, four hundred ninety-nine".