189420255196 has 24 divisors (see below), whose sum is σ = 336475078016. Its totient is φ = 93284872560.

The previous prime is 189420255163. The next prime is 189420255197. The reversal of 189420255196 is 691552024981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189420255197) 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, 2341951 + ... + 2421481.

Almost surely, 2^189420255196 is an apocalyptic number.

It is an amenable number.

189420255196 is a deficient number, since it is larger than the sum of its proper divisors (147054822820).

189420255196 is a wasteful number, since it uses less digits than its factorization.

189420255196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88489 (or 88487 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 189420255196 in words is "one hundred eighty-nine billion, four hundred twenty million, two hundred fifty-five thousand, one hundred ninety-six".