215174230040 has 64 divisors (see below), whose sum is σ = 603605640960. Its totient is φ = 67067291520.

The previous prime is 215174230027. The next prime is 215174230043. The reversal of 215174230040 is 40032471512.

It is a junction number, because it is equal to n+sod(n) for n = 215174229985 and 215174230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215174230043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34927802 + ... + 34933961.

It is an arithmetic number, because the mean of its divisors is an integer number (9431338140).

Almost surely, 2^215174230040 is an apocalyptic number.

215174230040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215174230040 is an abundant number, since it is smaller than the sum of its proper divisors (388431410920).

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

215174230040 is a wasteful number, since it uses less digits than its factorization.

215174230040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69861792 (or 69861788 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 215174230040 in words is "two hundred fifteen billion, one hundred seventy-four million, two hundred thirty thousand, forty".