164200298978 has 16 divisors (see below), whose sum is σ = 254256241920. Its totient is φ = 79448439600.

The previous prime is 164200298953. The next prime is 164200298987. The reversal of 164200298978 is 879892002461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135888 + ... + 2211428.

It is an arithmetic number, because the mean of its divisors is an integer number (15891015120).

Almost surely, 2^164200298978 is an apocalyptic number.

164200298978 is a deficient number, since it is larger than the sum of its proper divisors (90055942942).

164200298978 is a wasteful number, since it uses less digits than its factorization.

164200298978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110633.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 164200298978 in words is "one hundred sixty-four billion, two hundred million, two hundred ninety-eight thousand, nine hundred seventy-eight".