164054722555640 has 192 divisors, whose sum is σ = 436459450744800. Its totient is φ = 55321167283200.

The previous prime is 164054722555627. The next prime is 164054722555699. The reversal of 164054722555640 is 46555227450461.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1929536330 + ... + 1929621350.

Almost surely, 2^{164054722555640} is an apocalyptic number.

164054722555640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164054722555640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218229725372400).

164054722555640 is an abundant number, since it is smaller than the sum of its proper divisors (272404728189160).

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

164054722555640 is a wasteful number, since it uses less digits than its factorization.

164054722555640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101246 (or 101235 counting only the distinct ones).

The product of its (nonzero) digits is 40320000, while the sum is 56.

The spelling of 164054722555640 in words is "one hundred sixty-four trillion, fifty-four billion, seven hundred twenty-two million, five hundred fifty-five thousand, six hundred forty".