133935772665 has 16 divisors (see below), whose sum is σ = 215070879168. Its totient is φ = 71174531136.

The previous prime is 133935772589. The next prime is 133935772679. The reversal of 133935772665 is 566277539331.

It is not a de Polignac number, because 133935772665 - 2⁸ = 133935772409 is a prime.

It is a super-2 number, since 2×133935772665² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16113267 + ... + 16121576.

It is an arithmetic number, because the mean of its divisors is an integer number (13441929948).

Almost surely, 2^133935772665 is an apocalyptic number.

133935772665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133935772665 is a deficient number, since it is larger than the sum of its proper divisors (81135106503).

133935772665 is a wasteful number, since it uses less digits than its factorization.

133935772665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32235128.

The product of its digits is 21432600, while the sum is 57.

The spelling of 133935772665 in words is "one hundred thirty-three billion, nine hundred thirty-five million, seven hundred seventy-two thousand, six hundred sixty-five".