133920823650 has 24 divisors (see below), whose sum is σ = 332123643024. Its totient is φ = 35712219600.

The previous prime is 133920823633. The next prime is 133920823667. The reversal of 133920823650 is 56328029331.

It is an interprime number because it is at equal distance from previous prime (133920823633) and next prime (133920823667).

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, 446402596 + ... + 446402895.

It is an arithmetic number, because the mean of its divisors is an integer number (13838485126).

Almost surely, 2^133920823650 is an apocalyptic number.

133920823650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133920823650 is an abundant number, since it is smaller than the sum of its proper divisors (198202819374).

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

133920823650 is a wasteful number, since it uses less digits than its factorization.

133920823650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892805506 (or 892805501 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 133920823650 in words is "one hundred thirty-three billion, nine hundred twenty million, eight hundred twenty-three thousand, six hundred fifty".