164796963978 has 8 divisors (see below), whose sum is σ = 329593927968. Its totient is φ = 54932321324.

The previous prime is 164796963973. The next prime is 164796964019. The reversal of 164796963978 is 879369697461.

It is a sphenic number, since it is the product of 3 distinct primes.

164796963978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (164796963971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13733080326 + ... + 13733080337.

It is an arithmetic number, because the mean of its divisors is an integer number (41199240996).

Almost surely, 2^164796963978 is an apocalyptic number.

164796963978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

164796963978 is a wasteful number, since it uses less digits than its factorization.

164796963978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27466160668.

The product of its digits is 740710656, while the sum is 75.

The spelling of 164796963978 in words is "one hundred sixty-four billion, seven hundred ninety-six million, nine hundred sixty-three thousand, nine hundred seventy-eight".