1663076613 has 16 divisors (see below), whose sum is σ = 2455128576. Its totient is φ = 992880240.

The previous prime is 1663076587. The next prime is 1663076651. The reversal of 1663076613 is 3166703661.

It is not a de Polignac number, because 1663076613 - 2⁹ = 1663076101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663076113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373881 + ... + 378302.

It is an arithmetic number, because the mean of its divisors is an integer number (153445536).

Almost surely, 2^1663076613 is an apocalyptic number.

It is an amenable number.

1663076613 is a deficient number, since it is larger than the sum of its proper divisors (792051963).

1663076613 is a wasteful number, since it uses less digits than its factorization.

1663076613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752264.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 1663076613 is about 40780.8363450285. The cubic root of 1663076613 is about 1184.7791936680.

The spelling of 1663076613 in words is "one billion, six hundred sixty-three million, seventy-six thousand, six hundred thirteen".