133335577890 has 24 divisors (see below), whose sum is σ = 346672502748. Its totient is φ = 35556154080.

The previous prime is 133335577889. The next prime is 133335577927. The reversal of 133335577890 is 98775533331.

133335577890 is a `hidden beast` number, since 1 + 3 + 3 + 3 + 3 + 557 + 7 + 89 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 133125008769 + 210569121 = 364863^2 + 14511^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 740753121 + ... + 740753300.

Almost surely, 2^133335577890 is an apocalyptic number.

133335577890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133335577890 is an abundant number, since it is smaller than the sum of its proper divisors (213336924858).

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

133335577890 is a wasteful number, since it uses less digits than its factorization.

133335577890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481506434 (or 1481506431 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 54.

The spelling of 133335577890 in words is "one hundred thirty-three billion, three hundred thirty-five million, five hundred seventy-seven thousand, eight hundred ninety".