164195687830 has 24 divisors (see below), whose sum is σ = 306095139792. Its totient is φ = 63413503776.

The previous prime is 164195687797. The next prime is 164195687849. The reversal of 164195687830 is 38786591461.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9753522 + ... + 9770341.

It is an arithmetic number, because the mean of its divisors is an integer number (12753964158).

Almost surely, 2^164195687830 is an apocalyptic number.

164195687830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164195687830 is a deficient number, since it is larger than the sum of its proper divisors (141899451962).

164195687830 is a wasteful number, since it uses less digits than its factorization.

164195687830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19523928 (or 19523899 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 164195687830 in words is "one hundred sixty-four billion, one hundred ninety-five million, six hundred eighty-seven thousand, eight hundred thirty".