43156505069040 has 160 divisors (see below), whose sum is σ = 145951534146816. Its totient is φ = 10461890529280.

The previous prime is 43156505069039. The next prime is 43156505069059. The reversal of 43156505069040 is 4096050565134.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103049347 + ... + 103467293.

Almost surely, 2^{43156505069040} is an apocalyptic number.

43156505069040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43156505069040 is an abundant number, since it is smaller than the sum of its proper divisors (102795029077776).

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

43156505069040 is a wasteful number, since it uses less digits than its factorization.

43156505069040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457087 (or 457081 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 43156505069040 in words is "forty-three trillion, one hundred fifty-six billion, five hundred five million, sixty-nine thousand, forty".