133663257465 has 32 divisors (see below), whose sum is σ = 218618528256. Its totient is φ = 69704175360.

The previous prime is 133663257439. The next prime is 133663257527. The reversal of 133663257465 is 564752366331.

It is not a de Polignac number, because 133663257465 - 2⁵ = 133663257433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658659 + ... + 837351.

It is an arithmetic number, because the mean of its divisors is an integer number (6831829008).

Almost surely, 2^133663257465 is an apocalyptic number.

133663257465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133663257465 is a deficient number, since it is larger than the sum of its proper divisors (84955270791).

133663257465 is a wasteful number, since it uses less digits than its factorization.

133663257465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179809.

The product of its digits is 8164800, while the sum is 51.

The spelling of 133663257465 in words is "one hundred thirty-three billion, six hundred sixty-three million, two hundred fifty-seven thousand, four hundred sixty-five".