126653363265 has 48 divisors (see below), whose sum is σ = 239381040960. Its totient is φ = 56684010240.

The previous prime is 126653363231. The next prime is 126653363269. The reversal of 126653363265 is 562363356621.

It is a happy number.

It is not a de Polignac number, because 126653363265 - 2¹² = 126653359169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126653363269) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2243110 + ... + 2298879.

It is an arithmetic number, because the mean of its divisors is an integer number (4987105020).

Almost surely, 2^126653363265 is an apocalyptic number.

126653363265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126653363265 is a deficient number, since it is larger than the sum of its proper divisors (112727677695).

126653363265 is a wasteful number, since it uses less digits than its factorization.

126653363265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542034 (or 4542021 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 48.

The spelling of 126653363265 in words is "one hundred twenty-six billion, six hundred fifty-three million, three hundred sixty-three thousand, two hundred sixty-five".