1601543502144 has 42 divisors (see below), whose sum is σ = 4590535282970. Its totient is φ = 533847833856.

The previous prime is 1601543502133. The next prime is 1601543502191. The reversal of 1601543502144 is 4412053451061.

1601543502144 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 5 + 4 + 3 + 502 + 144 = 666.

It can be written as a sum of positive squares in only one way, i.e., 966462015744 + 635081486400 = 983088^2 + 796920^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1601543502099 and 1601543502108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1390228159 + ... + 1390229310.

Almost surely, 2^{1601543502144} is an apocalyptic number.

It is an amenable number.

1601543502144 is an abundant number, since it is smaller than the sum of its proper divisors (2988991780826).

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

1601543502144 is a wasteful number, since it uses less digits than its factorization.

1601543502144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780457487 (or 2780457474 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 1601543502144 in words is "one trillion, six hundred one billion, five hundred forty-three million, five hundred two thousand, one hundred forty-four".