199556027274 has 16 divisors (see below), whose sum is σ = 402986930112. Its totient is φ = 65872863168.

The previous prime is 199556027243. The next prime is 199556027317. The reversal of 199556027274 is 472720655991.

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, 161452479 + ... + 161453714.

It is an arithmetic number, because the mean of its divisors is an integer number (25186683132).

Almost surely, 2^199556027274 is an apocalyptic number.

199556027274 is an abundant number, since it is smaller than the sum of its proper divisors (203430902838).

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

199556027274 is a wasteful number, since it uses less digits than its factorization.

199556027274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322906301.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 199556027274 in words is "one hundred ninety-nine billion, five hundred fifty-six million, twenty-seven thousand, two hundred seventy-four".