43215672161660 has 48 divisors (see below), whose sum is σ = 95575155863040. Its totient is φ = 16368618047040.

The previous prime is 43215672161639. The next prime is 43215672161699. The reversal of 43215672161660 is 6616127651234.

It is a junction number, because it is equal to n+sod(n) for n = 43215672161599 and 43215672161608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26453096 + ... + 28039215.

It is an arithmetic number, because the mean of its divisors is an integer number (1991149080480).

Almost surely, 2^{43215672161660} is an apocalyptic number.

It is an amenable number.

43215672161660 is an abundant number, since it is smaller than the sum of its proper divisors (52359483701380).

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

43215672161660 is a wasteful number, since it uses less digits than its factorization.

43215672161660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54494426 (or 54494424 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 43215672161660 in words is "forty-three trillion, two hundred fifteen billion, six hundred seventy-two million, one hundred sixty-one thousand, six hundred sixty".