17147161920 has 168 divisors, whose sum is σ = 63330941664. Its totient is φ = 3919340544.

The previous prime is 17147161897. The next prime is 17147161937. The reversal of 17147161920 is 2916174171.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135222 + ... + 229301.

Almost surely, 2^17147161920 is an apocalyptic number.

17147161920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17147161920 is an abundant number, since it is smaller than the sum of its proper divisors (46183779744).

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

17147161920 is a wasteful number, since it uses less digits than its factorization.

17147161920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364557 (or 364540 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 39.

The spelling of 17147161920 in words is "seventeen billion, one hundred forty-seven million, one hundred sixty-one thousand, nine hundred twenty".