199056820460 has 24 divisors (see below), whose sum is σ = 418028669856. Its totient is φ = 79620947840.

The previous prime is 199056820451. The next prime is 199056820477. The reversal of 199056820460 is 64028650991.

It is a super-2 number, since 2×199056820460² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199056820399 and 199056820408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159544 + ... + 1320096.

It is an arithmetic number, because the mean of its divisors is an integer number (17417861244).

Almost surely, 2^199056820460 is an apocalyptic number.

199056820460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199056820460 is an abundant number, since it is smaller than the sum of its proper divisors (218971849396).

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

199056820460 is a wasteful number, since it uses less digits than its factorization.

199056820460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222553 (or 222551 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 199056820460 in words is "one hundred ninety-nine billion, fifty-six million, eight hundred twenty thousand, four hundred sixty".