215531374060 has 24 divisors (see below), whose sum is σ = 459371349360. Its totient is φ = 84925794624.

The previous prime is 215531374033. The next prime is 215531374067. The reversal of 215531374060 is 60473135512.

It is not an unprimeable number, because it can be changed into a prime (215531374067) 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, 80420815 + ... + 80423494.

It is an arithmetic number, because the mean of its divisors is an integer number (19140472890).

Almost surely, 2^215531374060 is an apocalyptic number.

215531374060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215531374060 is an abundant number, since it is smaller than the sum of its proper divisors (243839975300).

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

215531374060 is a wasteful number, since it uses less digits than its factorization.

215531374060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160844385 (or 160844383 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 215531374060 in words is "two hundred fifteen billion, five hundred thirty-one million, three hundred seventy-four thousand, sixty".