1601141949849 has 24 divisors (see below), whose sum is σ = 2319597907200. Its totient is φ = 981955171392.

The previous prime is 1601141949821. The next prime is 1601141949851. The reversal of 1601141949849 is 9489491411061.

It is not a de Polignac number, because 1601141949849 - 2¹³ = 1601141941657 is a prime.

It is a super-2 number, since 2×1601141949849² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601141949749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5240649 + ... + 5537750.

It is an arithmetic number, because the mean of its divisors is an integer number (96649912800).

Almost surely, 2^{1601141949849} is an apocalyptic number.

It is an amenable number.

1601141949849 is a deficient number, since it is larger than the sum of its proper divisors (718455957351).

1601141949849 is a wasteful number, since it uses less digits than its factorization.

1601141949849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10778721 (or 10778708 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 57.

The spelling of 1601141949849 in words is "one trillion, six hundred one billion, one hundred forty-one million, nine hundred forty-nine thousand, eight hundred forty-nine".