1601256119994 has 48 divisors (see below), whose sum is σ = 3606080237760. Its totient is φ = 532536132960.

The previous prime is 1601256119963. The next prime is 1601256119999. The reversal of 1601256119994 is 4999116521061.

1601256119994 is a `hidden beast` number, since 1 + 6 + 0 + 12 + 5 + 611 + 9 + 9 + 9 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1601256119994.

It is not an unprimeable number, because it can be changed into a prime (1601256119999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3539227 + ... + 3965934.

It is an arithmetic number, because the mean of its divisors is an integer number (75126671620).

Almost surely, 2^{1601256119994} is an apocalyptic number.

1601256119994 is an abundant number, since it is smaller than the sum of its proper divisors (2004824117766).

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

1601256119994 is an equidigital number, since it uses as much as digits as its factorization.

1601256119994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505617 (or 7505605 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The spelling of 1601256119994 in words is "one trillion, six hundred one billion, two hundred fifty-six million, one hundred nineteen thousand, nine hundred ninety-four".