1601172074502 has 384 divisors, whose sum is σ = 4820512435200. Its totient is φ = 383344980480.

The previous prime is 1601172074471. The next prime is 1601172074549. The reversal of 1601172074502 is 2054702711061.

1601172074502 is a `hidden beast` number, since 1 + 6 + 0 + 11 + 72 + 0 + 74 + 502 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 539295274 + ... + 539298242.

It is an arithmetic number, because the mean of its divisors is an integer number (12553417800).

Almost surely, 2^{1601172074502} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601172074502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2410256217600).

1601172074502 is an abundant number, since it is smaller than the sum of its proper divisors (3219340360698).

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

1601172074502 is a wasteful number, since it uses less digits than its factorization.

1601172074502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929 (or 3912 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

Adding to 1601172074502 its reverse (2054702711061), we get a palindrome (3655874785563).

The spelling of 1601172074502 in words is "one trillion, six hundred one billion, one hundred seventy-two million, seventy-four thousand, five hundred two".