133478761266 has 48 divisors (see below), whose sum is σ = 290161872000. Its totient is φ = 44345670624.

The previous prime is 133478761253. The next prime is 133478761279. The reversal of 133478761266 is 662167874331.

It is a happy number.

133478761266 is a `hidden beast` number, since 1 + 33 + 478 + 76 + 12 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (133478761253) and next prime (133478761279).

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 23 ways as a sum of consecutive naturals, for example, 22982935 + ... + 22988741.

It is an arithmetic number, because the mean of its divisors is an integer number (6045039000).

Almost surely, 2^133478761266 is an apocalyptic number.

133478761266 is an abundant number, since it is smaller than the sum of its proper divisors (156683110734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133478761266 is a wasteful number, since it uses less digits than its factorization.

133478761266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9823 (or 9820 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 133478761266 in words is "one hundred thirty-three billion, four hundred seventy-eight million, seven hundred sixty-one thousand, two hundred sixty-six".