164120443642 has 16 divisors (see below), whose sum is σ = 252863834112. Its totient is φ = 79833018960.

The previous prime is 164120443639. The next prime is 164120443667. The reversal of 164120443642 is 246344021461.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 527923 + ... + 779065.

It is an arithmetic number, because the mean of its divisors is an integer number (15803989632).

Almost surely, 2^164120443642 is an apocalyptic number.

164120443642 is a deficient number, since it is larger than the sum of its proper divisors (88743390470).

164120443642 is a wasteful number, since it uses less digits than its factorization.

164120443642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260013.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 164120443642 in words is "one hundred sixty-four billion, one hundred twenty million, four hundred forty-three thousand, six hundred forty-two".