197402160784920 has 128 divisors (see below), whose sum is σ = 728869516784640. Its totient is φ = 41649686668800.

The previous prime is 197402160784877. The next prime is 197402160784937. The reversal of 197402160784920 is 29487061204791.

It is a super-2 number, since 2×197402160784920² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9038549556 + ... + 9038571395.

It is an arithmetic number, because the mean of its divisors is an integer number (5694293099880).

Almost surely, 2^{197402160784920} is an apocalyptic number.

197402160784920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197402160784920 is an abundant number, since it is smaller than the sum of its proper divisors (531467355999720).

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

197402160784920 is a wasteful number, since it uses less digits than its factorization.

197402160784920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18077120985 (or 18077120981 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 197402160784920 in words is "one hundred ninety-seven trillion, four hundred two billion, one hundred sixty million, seven hundred eighty-four thousand, nine hundred twenty".