156543039040 has 56 divisors (see below), whose sum is σ = 375489151992. Its totient is φ = 62160138240.

The previous prime is 156543039017. The next prime is 156543039049. The reversal of 156543039040 is 40930345651.

It can be written as a sum of positive squares in 4 ways, for example, as 2678269504 + 153864769536 = 51752^2 + 392256^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 156543038984 and 156543039002.

It is not an unprimeable number, because it can be changed into a prime (156543039049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741551 + ... + 1829230.

Almost surely, 2^156543039040 is an apocalyptic number.

156543039040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156543039040 is an abundant number, since it is smaller than the sum of its proper divisors (218946112952).

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

156543039040 is a wasteful number, since it uses less digits than its factorization.

156543039040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570935 (or 3570925 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 156543039040 in words is "one hundred fifty-six billion, five hundred forty-three million, thirty-nine thousand, forty".