133804815365 has 32 divisors (see below), whose sum is σ = 174150103680. Its totient is φ = 98106787584.

The previous prime is 133804815359. The next prime is 133804815371. The reversal of 133804815365 is 563518408331.

It is an interprime number because it is at equal distance from previous prime (133804815359) and next prime (133804815371).

It is not a de Polignac number, because 133804815365 - 2⁴ = 133804815349 is a prime.

It is a super-2 number, since 2×133804815365² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7868402 + ... + 7885388.

It is an arithmetic number, because the mean of its divisors is an integer number (5442190740).

Almost surely, 2^133804815365 is an apocalyptic number.

It is an amenable number.

133804815365 is a deficient number, since it is larger than the sum of its proper divisors (40345288315).

133804815365 is a wasteful number, since it uses less digits than its factorization.

133804815365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17861.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 133804815365 in words is "one hundred thirty-three billion, eight hundred four million, eight hundred fifteen thousand, three hundred sixty-five".