1601554055670 has 96 divisors (see below), whose sum is σ = 4203412012800. Its totient is φ = 423061911360.

The previous prime is 1601554055657. The next prime is 1601554055671. The reversal of 1601554055670 is 765504551061.

It is a happy number.

1601554055670 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 55 + 40 + 556 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601554055671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3868605 + ... + 4262535.

It is an arithmetic number, because the mean of its divisors is an integer number (43785541800).

Almost surely, 2^{1601554055670} is an apocalyptic number.

1601554055670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601554055670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2101706006400).

1601554055670 is an abundant number, since it is smaller than the sum of its proper divisors (2601857957130).

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

1601554055670 is a wasteful number, since it uses less digits than its factorization.

1601554055670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394370 (or 394367 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 1601554055670 in words is "one trillion, six hundred one billion, five hundred fifty-four million, fifty-five thousand, six hundred seventy".