199162660 has 12 divisors (see below), whose sum is σ = 418241628. Its totient is φ = 79665056.

The previous prime is 199162657. The next prime is 199162661. The reversal of 199162660 is 66261991.

It can be written as a sum of positive squares in 2 ways, for example, as 51151104 + 148011556 = 7152^2 + 12166^2 .

It is not an unprimeable number, because it can be changed into a prime (199162661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4979047 + ... + 4979086.

It is an arithmetic number, because the mean of its divisors is an integer number (34853469).

Almost surely, 2^199162660 is an apocalyptic number.

199162660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199162660 is an abundant number, since it is smaller than the sum of its proper divisors (219078968).

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

199162660 is a wasteful number, since it uses less digits than its factorization.

199162660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958142 (or 9958140 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 199162660 is about 14112.5001328609. The cubic root of 199162660 is about 583.9862736813.

The spelling of 199162660 in words is "one hundred ninety-nine million, one hundred sixty-two thousand, six hundred sixty".