164420815192 has 16 divisors (see below), whose sum is σ = 316621164960. Its totient is φ = 79988504544.

The previous prime is 164420815171. The next prime is 164420815219. The reversal of 164420815192 is 291518024461.

It is a super-3 number, since 3×164420815192³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277737568 + ... + 277738159.

It is an arithmetic number, because the mean of its divisors is an integer number (19788822810).

Almost surely, 2^164420815192 is an apocalyptic number.

It is an amenable number.

164420815192 is a deficient number, since it is larger than the sum of its proper divisors (152200349768).

164420815192 is a wasteful number, since it uses less digits than its factorization.

164420815192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555475770 (or 555475766 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 164420815192 in words is "one hundred sixty-four billion, four hundred twenty million, eight hundred fifteen thousand, one hundred ninety-two".