1540581032156 has 6 divisors (see below), whose sum is σ = 2696016806280. Its totient is φ = 770290516076.

The previous prime is 1540581032153. The next prime is 1540581032197. The reversal of 1540581032156 is 6512301850451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540581032153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192572629016 + ... + 192572629023.

It is an arithmetic number, because the mean of its divisors is an integer number (449336134380).

Almost surely, 2^{1540581032156} is an apocalyptic number.

It is an amenable number.

1540581032156 is a deficient number, since it is larger than the sum of its proper divisors (1155435774124).

1540581032156 is a wasteful number, since it uses less digits than its factorization.

1540581032156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385145258043 (or 385145258041 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 1540581032156 in words is "one trillion, five hundred forty billion, five hundred eighty-one million, thirty-two thousand, one hundred fifty-six".