196008400090 has 36 divisors (see below), whose sum is σ = 355156514622. Its totient is φ = 77886468960.

The previous prime is 196008400067. The next prime is 196008400109. The reversal of 196008400090 is 90004800691.

It can be written as a sum of positive squares in 3 ways, for example, as 190142218809 + 5866181281 = 436053^2 + 76591^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 267405364 + ... + 267406096.

Almost surely, 2^196008400090 is an apocalyptic number.

196008400090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196008400090 is a deficient number, since it is larger than the sum of its proper divisors (159148114532).

196008400090 is an frugal number, since it uses more digits than its factorization.

196008400090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 196008400090 in words is "one hundred ninety-six billion, eight million, four hundred thousand, ninety".