199029802000 has 40 divisors (see below), whose sum is σ = 481254066072. Its totient is φ = 79611920000.

The previous prime is 199029801977. The next prime is 199029802001. The reversal of 199029802000 is 208920991.

It can be written as a sum of positive squares in 4 ways, for example, as 5134009104 + 193895792896 = 71652^2 + 440336^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×199029802000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (199029802001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49755451 + ... + 49759450.

Almost surely, 2^199029802000 is an apocalyptic number.

199029802000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199029802000 is an abundant number, since it is smaller than the sum of its proper divisors (282224264072).

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

199029802000 is an equidigital number, since it uses as much as digits as its factorization.

199029802000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99514924 (or 99514908 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 199029802000 in words is "one hundred ninety-nine billion, twenty-nine million, eight hundred two thousand".