1355007663 has 16 divisors (see below), whose sum is σ = 2008095840. Its totient is φ = 903033792.

The previous prime is 1355007659. The next prime is 1355007691. The reversal of 1355007663 is 3667005531.

It is a happy number.

It is not a de Polignac number, because 1355007663 - 2² = 1355007659 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354007663) 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, 96945 + ... + 110037.

It is an arithmetic number, because the mean of its divisors is an integer number (125505990).

Almost surely, 2^1355007663 is an apocalyptic number.

1355007663 is a deficient number, since it is larger than the sum of its proper divisors (653088177).

1355007663 is a wasteful number, since it uses less digits than its factorization.

1355007663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16935 (or 16929 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 1355007663 is about 36810.4287261097. The cubic root of 1355007663 is about 1106.5743106606.

The spelling of 1355007663 in words is "one billion, three hundred fifty-five million, seven thousand, six hundred sixty-three".